Home / 14,961.41-20,646.89-8,247.30

Finding the Fourth Proportional to 14,961.41, 20,646.89 and 8,247.30

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Solution

The fourth proportional to 14,961.41, 20,646.89 and 8,247.30 is: 11,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.41 : 20,646.89 = 8,247.30 : x
  2. Step 2: Convert to fraction form
    14,961.41/20,646.89 = 8,247.30/x
  3. Step 3: Cross multiply
    14,961.41x = 20,646.89 × 8,247.30
  4. Step 4: Simplify right side
    14,961.41x = 170,281,095.90
  5. Step 5: Solve for x
    x = 170,281,095.90/14,961.41
  6. Step 6: Final answer
    x = 11,381.35

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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.