Home / 13,021.27-17,966.24-7,715.16

Finding the Fourth Proportional to 13,021.27, 17,966.24 and 7,715.16

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Solution

The fourth proportional to 13,021.27, 17,966.24 and 7,715.16 is: 10,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.27 : 17,966.24 = 7,715.16 : x
  2. Step 2: Convert to fraction form
    13,021.27/17,966.24 = 7,715.16/x
  3. Step 3: Cross multiply
    13,021.27x = 17,966.24 × 7,715.16
  4. Step 4: Simplify right side
    13,021.27x = 138,612,406.55
  5. Step 5: Solve for x
    x = 138,612,406.55/13,021.27
  6. Step 6: Final answer
    x = 10,645.08

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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.