Home / 18,710.08-28,045.03-9,331.57

Finding the Fourth Proportional to 18,710.08, 28,045.03 and 9,331.57

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Solution

The fourth proportional to 18,710.08, 28,045.03 and 9,331.57 is: 13,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.08 : 28,045.03 = 9,331.57 : x
  2. Step 2: Convert to fraction form
    18,710.08/28,045.03 = 9,331.57/x
  3. Step 3: Cross multiply
    18,710.08x = 28,045.03 × 9,331.57
  4. Step 4: Simplify right side
    18,710.08x = 261,704,032.10
  5. Step 5: Solve for x
    x = 261,704,032.10/18,710.08
  6. Step 6: Final answer
    x = 13,987.33

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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.