Home / 18,775.08-28,160.46-4,925.16

Finding the Fourth Proportional to 18,775.08, 28,160.46 and 4,925.16

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Solution

The fourth proportional to 18,775.08, 28,160.46 and 4,925.16 is: 7,387.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.08 : 28,160.46 = 4,925.16 : x
  2. Step 2: Convert to fraction form
    18,775.08/28,160.46 = 4,925.16/x
  3. Step 3: Cross multiply
    18,775.08x = 28,160.46 × 4,925.16
  4. Step 4: Simplify right side
    18,775.08x = 138,694,771.17
  5. Step 5: Solve for x
    x = 138,694,771.17/18,775.08
  6. Step 6: Final answer
    x = 7,387.17

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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.