Home / 19,123.68-26,326.04-15,761.16

Finding the Fourth Proportional to 19,123.68, 26,326.04 and 15,761.16

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Solution

The fourth proportional to 19,123.68, 26,326.04 and 15,761.16 is: 21,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.68 : 26,326.04 = 15,761.16 : x
  2. Step 2: Convert to fraction form
    19,123.68/26,326.04 = 15,761.16/x
  3. Step 3: Cross multiply
    19,123.68x = 26,326.04 × 15,761.16
  4. Step 4: Simplify right side
    19,123.68x = 414,928,928.61
  5. Step 5: Solve for x
    x = 414,928,928.61/19,123.68
  6. Step 6: Final answer
    x = 21,697.13

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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.