Home / 11,655.80-17,442.64-7,275.32

Finding the Fourth Proportional to 11,655.80, 17,442.64 and 7,275.32

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Solution

The fourth proportional to 11,655.80, 17,442.64 and 7,275.32 is: 10,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.80 : 17,442.64 = 7,275.32 : x
  2. Step 2: Convert to fraction form
    11,655.80/17,442.64 = 7,275.32/x
  3. Step 3: Cross multiply
    11,655.80x = 17,442.64 × 7,275.32
  4. Step 4: Simplify right side
    11,655.80x = 126,900,787.64
  5. Step 5: Solve for x
    x = 126,900,787.64/11,655.80
  6. Step 6: Final answer
    x = 10,887.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.