Home / 14,225.61-19,632.20-7,938.39

Finding the Fourth Proportional to 14,225.61, 19,632.20 and 7,938.39

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Solution

The fourth proportional to 14,225.61, 19,632.20 and 7,938.39 is: 10,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.61 : 19,632.20 = 7,938.39 : x
  2. Step 2: Convert to fraction form
    14,225.61/19,632.20 = 7,938.39/x
  3. Step 3: Cross multiply
    14,225.61x = 19,632.20 × 7,938.39
  4. Step 4: Simplify right side
    14,225.61x = 155,848,020.47
  5. Step 5: Solve for x
    x = 155,848,020.47/14,225.61
  6. Step 6: Final answer
    x = 10,955.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.