Home / 18,468.09-27,702.23-5,320.77

Finding the Fourth Proportional to 18,468.09, 27,702.23 and 5,320.77

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Solution

The fourth proportional to 18,468.09, 27,702.23 and 5,320.77 is: 7,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.09 : 27,702.23 = 5,320.77 : x
  2. Step 2: Convert to fraction form
    18,468.09/27,702.23 = 5,320.77/x
  3. Step 3: Cross multiply
    18,468.09x = 27,702.23 × 5,320.77
  4. Step 4: Simplify right side
    18,468.09x = 147,397,167.71
  5. Step 5: Solve for x
    x = 147,397,167.71/18,468.09
  6. Step 6: Final answer
    x = 7,981.18

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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.