Home / 15,727.62-21,713.07-10,429.59

Finding the Fourth Proportional to 15,727.62, 21,713.07 and 10,429.59

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Solution

The fourth proportional to 15,727.62, 21,713.07 and 10,429.59 is: 14,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.62 : 21,713.07 = 10,429.59 : x
  2. Step 2: Convert to fraction form
    15,727.62/21,713.07 = 10,429.59/x
  3. Step 3: Cross multiply
    15,727.62x = 21,713.07 × 10,429.59
  4. Step 4: Simplify right side
    15,727.62x = 226,458,417.74
  5. Step 5: Solve for x
    x = 226,458,417.74/15,727.62
  6. Step 6: Final answer
    x = 14,398.77

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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.