Home / 15,468.92-21,336.54-9,877.40

Finding the Fourth Proportional to 15,468.92, 21,336.54 and 9,877.40

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Solution

The fourth proportional to 15,468.92, 21,336.54 and 9,877.40 is: 13,624.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.92 : 21,336.54 = 9,877.40 : x
  2. Step 2: Convert to fraction form
    15,468.92/21,336.54 = 9,877.40/x
  3. Step 3: Cross multiply
    15,468.92x = 21,336.54 × 9,877.40
  4. Step 4: Simplify right side
    15,468.92x = 210,749,540.20
  5. Step 5: Solve for x
    x = 210,749,540.20/15,468.92
  6. Step 6: Final answer
    x = 13,624.06

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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.