Home / 15,717.57-21,724.92-13,814.88

Finding the Fourth Proportional to 15,717.57, 21,724.92 and 13,814.88

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Solution

The fourth proportional to 15,717.57, 21,724.92 and 13,814.88 is: 19,095.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.57 : 21,724.92 = 13,814.88 : x
  2. Step 2: Convert to fraction form
    15,717.57/21,724.92 = 13,814.88/x
  3. Step 3: Cross multiply
    15,717.57x = 21,724.92 × 13,814.88
  4. Step 4: Simplify right side
    15,717.57x = 300,127,162.81
  5. Step 5: Solve for x
    x = 300,127,162.81/15,717.57
  6. Step 6: Final answer
    x = 19,095.01

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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.