Home / 14,577.02-20,116.29-8,289.78

Finding the Fourth Proportional to 14,577.02, 20,116.29 and 8,289.78

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Solution

The fourth proportional to 14,577.02, 20,116.29 and 8,289.78 is: 11,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.02 : 20,116.29 = 8,289.78 : x
  2. Step 2: Convert to fraction form
    14,577.02/20,116.29 = 8,289.78/x
  3. Step 3: Cross multiply
    14,577.02x = 20,116.29 × 8,289.78
  4. Step 4: Simplify right side
    14,577.02x = 166,759,618.52
  5. Step 5: Solve for x
    x = 166,759,618.52/14,577.02
  6. Step 6: Final answer
    x = 11,439.90

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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.