Home / 19,272.56-28,862.66-9,887.90

Finding the Fourth Proportional to 19,272.56, 28,862.66 and 9,887.90

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Solution

The fourth proportional to 19,272.56, 28,862.66 and 9,887.90 is: 14,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.56 : 28,862.66 = 9,887.90 : x
  2. Step 2: Convert to fraction form
    19,272.56/28,862.66 = 9,887.90/x
  3. Step 3: Cross multiply
    19,272.56x = 28,862.66 × 9,887.90
  4. Step 4: Simplify right side
    19,272.56x = 285,391,095.81
  5. Step 5: Solve for x
    x = 285,391,095.81/19,272.56
  6. Step 6: Final answer
    x = 14,808.16

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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.