Home / 10,885.07-15,024.50-6,411.40

Finding the Fourth Proportional to 10,885.07, 15,024.50 and 6,411.40

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Solution

The fourth proportional to 10,885.07, 15,024.50 and 6,411.40 is: 8,849.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.07 : 15,024.50 = 6,411.40 : x
  2. Step 2: Convert to fraction form
    10,885.07/15,024.50 = 6,411.40/x
  3. Step 3: Cross multiply
    10,885.07x = 15,024.50 × 6,411.40
  4. Step 4: Simplify right side
    10,885.07x = 96,328,079.30
  5. Step 5: Solve for x
    x = 96,328,079.30/10,885.07
  6. Step 6: Final answer
    x = 8,849.56

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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.