Home / 15,589.82-21,516-9,925.10

Finding the Fourth Proportional to 15,589.82, 21,516 and 9,925.10

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Solution

The fourth proportional to 15,589.82, 21,516 and 9,925.10 is: 13,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.82 : 21,516 = 9,925.10 : x
  2. Step 2: Convert to fraction form
    15,589.82/21,516 = 9,925.10/x
  3. Step 3: Cross multiply
    15,589.82x = 21,516 × 9,925.10
  4. Step 4: Simplify right side
    15,589.82x = 213,548,451.60
  5. Step 5: Solve for x
    x = 213,548,451.60/15,589.82
  6. Step 6: Final answer
    x = 13,697.94

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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.