Home / 9,966.64-13,755.12-6,188.80

Finding the Fourth Proportional to 9,966.64, 13,755.12 and 6,188.80

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Solution

The fourth proportional to 9,966.64, 13,755.12 and 6,188.80 is: 8,541.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.64 : 13,755.12 = 6,188.80 : x
  2. Step 2: Convert to fraction form
    9,966.64/13,755.12 = 6,188.80/x
  3. Step 3: Cross multiply
    9,966.64x = 13,755.12 × 6,188.80
  4. Step 4: Simplify right side
    9,966.64x = 85,127,686.66
  5. Step 5: Solve for x
    x = 85,127,686.66/9,966.64
  6. Step 6: Final answer
    x = 8,541.26

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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.