Home / 18,864.16-28,299.17-5,713.40

Finding the Fourth Proportional to 18,864.16, 28,299.17 and 5,713.40

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Solution

The fourth proportional to 18,864.16, 28,299.17 and 5,713.40 is: 8,570.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.16 : 28,299.17 = 5,713.40 : x
  2. Step 2: Convert to fraction form
    18,864.16/28,299.17 = 5,713.40/x
  3. Step 3: Cross multiply
    18,864.16x = 28,299.17 × 5,713.40
  4. Step 4: Simplify right side
    18,864.16x = 161,684,477.88
  5. Step 5: Solve for x
    x = 161,684,477.88/18,864.16
  6. Step 6: Final answer
    x = 8,570.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.