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Finding the Fourth Proportional to 18,585, 25,647.14 and 10,087.08

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Solution

The fourth proportional to 18,585, 25,647.14 and 10,087.08 is: 13,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585 : 25,647.14 = 10,087.08 : x
  2. Step 2: Convert to fraction form
    18,585/25,647.14 = 10,087.08/x
  3. Step 3: Cross multiply
    18,585x = 25,647.14 × 10,087.08
  4. Step 4: Simplify right side
    18,585x = 258,704,752.95
  5. Step 5: Solve for x
    x = 258,704,752.95/18,585
  6. Step 6: Final answer
    x = 13,920.08

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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.