Home / 10,725.60-16,066.80-7,442.40

Finding the Fourth Proportional to 10,725.60, 16,066.80 and 7,442.40

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Solution

The fourth proportional to 10,725.60, 16,066.80 and 7,442.40 is: 11,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,725.60 : 16,066.80 = 7,442.40 : x
  2. Step 2: Convert to fraction form
    10,725.60/16,066.80 = 7,442.40/x
  3. Step 3: Cross multiply
    10,725.60x = 16,066.80 × 7,442.40
  4. Step 4: Simplify right side
    10,725.60x = 119,575,552.32
  5. Step 5: Solve for x
    x = 119,575,552.32/10,725.60
  6. Step 6: Final answer
    x = 11,148.61

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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.