Home / 18,445.66-25,455.06-10,488.28

Finding the Fourth Proportional to 18,445.66, 25,455.06 and 10,488.28

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Solution

The fourth proportional to 18,445.66, 25,455.06 and 10,488.28 is: 14,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.66 : 25,455.06 = 10,488.28 : x
  2. Step 2: Convert to fraction form
    18,445.66/25,455.06 = 10,488.28/x
  3. Step 3: Cross multiply
    18,445.66x = 25,455.06 × 10,488.28
  4. Step 4: Simplify right side
    18,445.66x = 266,979,796.70
  5. Step 5: Solve for x
    x = 266,979,796.70/18,445.66
  6. Step 6: Final answer
    x = 14,473.85

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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.