Home / 19,864.52-27,419.18-12,790.93

Finding the Fourth Proportional to 19,864.52, 27,419.18 and 12,790.93

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Solution

The fourth proportional to 19,864.52, 27,419.18 and 12,790.93 is: 17,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.52 : 27,419.18 = 12,790.93 : x
  2. Step 2: Convert to fraction form
    19,864.52/27,419.18 = 12,790.93/x
  3. Step 3: Cross multiply
    19,864.52x = 27,419.18 × 12,790.93
  4. Step 4: Simplify right side
    19,864.52x = 350,716,812.04
  5. Step 5: Solve for x
    x = 350,716,812.04/19,864.52
  6. Step 6: Final answer
    x = 17,655.44

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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.