Home / 10,869.61-15,002.27-6,155.41

Finding the Fourth Proportional to 10,869.61, 15,002.27 and 6,155.41

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Solution

The fourth proportional to 10,869.61, 15,002.27 and 6,155.41 is: 8,495.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.61 : 15,002.27 = 6,155.41 : x
  2. Step 2: Convert to fraction form
    10,869.61/15,002.27 = 6,155.41/x
  3. Step 3: Cross multiply
    10,869.61x = 15,002.27 × 6,155.41
  4. Step 4: Simplify right side
    10,869.61x = 92,345,122.78
  5. Step 5: Solve for x
    x = 92,345,122.78/10,869.61
  6. Step 6: Final answer
    x = 8,495.72

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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.