Home / 14,720.02-20,312.56-8,346.74

Finding the Fourth Proportional to 14,720.02, 20,312.56 and 8,346.74

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Solution

The fourth proportional to 14,720.02, 20,312.56 and 8,346.74 is: 11,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.02 : 20,312.56 = 8,346.74 : x
  2. Step 2: Convert to fraction form
    14,720.02/20,312.56 = 8,346.74/x
  3. Step 3: Cross multiply
    14,720.02x = 20,312.56 × 8,346.74
  4. Step 4: Simplify right side
    14,720.02x = 169,543,657.05
  5. Step 5: Solve for x
    x = 169,543,657.05/14,720.02
  6. Step 6: Final answer
    x = 11,517.90

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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.