Home / 15,655.28-21,606.40-10,082.48

Finding the Fourth Proportional to 15,655.28, 21,606.40 and 10,082.48

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Solution

The fourth proportional to 15,655.28, 21,606.40 and 10,082.48 is: 13,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.28 : 21,606.40 = 10,082.48 : x
  2. Step 2: Convert to fraction form
    15,655.28/21,606.40 = 10,082.48/x
  3. Step 3: Cross multiply
    15,655.28x = 21,606.40 × 10,082.48
  4. Step 4: Simplify right side
    15,655.28x = 217,846,095.87
  5. Step 5: Solve for x
    x = 217,846,095.87/15,655.28
  6. Step 6: Final answer
    x = 13,915.18

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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.