Home / 10,621.40-15,932.10-8,893.40

Finding the Fourth Proportional to 10,621.40, 15,932.10 and 8,893.40

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Solution

The fourth proportional to 10,621.40, 15,932.10 and 8,893.40 is: 13,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.40 : 15,932.10 = 8,893.40 : x
  2. Step 2: Convert to fraction form
    10,621.40/15,932.10 = 8,893.40/x
  3. Step 3: Cross multiply
    10,621.40x = 15,932.10 × 8,893.40
  4. Step 4: Simplify right side
    10,621.40x = 141,690,538.14
  5. Step 5: Solve for x
    x = 141,690,538.14/10,621.40
  6. Step 6: Final answer
    x = 13,340.10

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1.5x scale

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.