Home / 15,468.42-21,335.85-9,876.90

Finding the Fourth Proportional to 15,468.42, 21,335.85 and 9,876.90

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Solution

The fourth proportional to 15,468.42, 21,335.85 and 9,876.90 is: 13,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.42 : 21,335.85 = 9,876.90 : x
  2. Step 2: Convert to fraction form
    15,468.42/21,335.85 = 9,876.90/x
  3. Step 3: Cross multiply
    15,468.42x = 21,335.85 × 9,876.90
  4. Step 4: Simplify right side
    15,468.42x = 210,732,056.87
  5. Step 5: Solve for x
    x = 210,732,056.87/15,468.42
  6. Step 6: Final answer
    x = 13,623.37

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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.