Home / 14,595.30-20,146.05-8,931.78

Finding the Fourth Proportional to 14,595.30, 20,146.05 and 8,931.78

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Solution

The fourth proportional to 14,595.30, 20,146.05 and 8,931.78 is: 12,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,595.30 : 20,146.05 = 8,931.78 : x
  2. Step 2: Convert to fraction form
    14,595.30/20,146.05 = 8,931.78/x
  3. Step 3: Cross multiply
    14,595.30x = 20,146.05 × 8,931.78
  4. Step 4: Simplify right side
    14,595.30x = 179,940,086.47
  5. Step 5: Solve for x
    x = 179,940,086.47/14,595.30
  6. Step 6: Final answer
    x = 12,328.63

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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.