Home / 10,877.94-15,017.13-6,688.62

Finding the Fourth Proportional to 10,877.94, 15,017.13 and 6,688.62

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Solution

The fourth proportional to 10,877.94, 15,017.13 and 6,688.62 is: 9,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.94 : 15,017.13 = 6,688.62 : x
  2. Step 2: Convert to fraction form
    10,877.94/15,017.13 = 6,688.62/x
  3. Step 3: Cross multiply
    10,877.94x = 15,017.13 × 6,688.62
  4. Step 4: Simplify right side
    10,877.94x = 100,443,876.06
  5. Step 5: Solve for x
    x = 100,443,876.06/10,877.94
  6. Step 6: Final answer
    x = 9,233.72

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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.