Home / 15,740.97-21,715.90-10,426.56

Finding the Fourth Proportional to 15,740.97, 21,715.90 and 10,426.56

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Solution

The fourth proportional to 15,740.97, 21,715.90 and 10,426.56 is: 14,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.97 : 21,715.90 = 10,426.56 : x
  2. Step 2: Convert to fraction form
    15,740.97/21,715.90 = 10,426.56/x
  3. Step 3: Cross multiply
    15,740.97x = 21,715.90 × 10,426.56
  4. Step 4: Simplify right side
    15,740.97x = 226,422,085.45
  5. Step 5: Solve for x
    x = 226,422,085.45/15,740.97
  6. Step 6: Final answer
    x = 14,384.26

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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.