Home / 13,197.81-18,213.29-7,532.45

Finding the Fourth Proportional to 13,197.81, 18,213.29 and 7,532.45

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Solution

The fourth proportional to 13,197.81, 18,213.29 and 7,532.45 is: 10,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.81 : 18,213.29 = 7,532.45 : x
  2. Step 2: Convert to fraction form
    13,197.81/18,213.29 = 7,532.45/x
  3. Step 3: Cross multiply
    13,197.81x = 18,213.29 × 7,532.45
  4. Step 4: Simplify right side
    13,197.81x = 137,190,567.53
  5. Step 5: Solve for x
    x = 137,190,567.53/13,197.81
  6. Step 6: Final answer
    x = 10,394.95

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Half scale
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Double scale
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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.