Home / 14,225.75-19,631.54-7,938.13

Finding the Fourth Proportional to 14,225.75, 19,631.54 and 7,938.13

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Solution

The fourth proportional to 14,225.75, 19,631.54 and 7,938.13 is: 10,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.75 : 19,631.54 = 7,938.13 : x
  2. Step 2: Convert to fraction form
    14,225.75/19,631.54 = 7,938.13/x
  3. Step 3: Cross multiply
    14,225.75x = 19,631.54 × 7,938.13
  4. Step 4: Simplify right side
    14,225.75x = 155,837,716.62
  5. Step 5: Solve for x
    x = 155,837,716.62/14,225.75
  6. Step 6: Final answer
    x = 10,954.62

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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.