Home / 18,282.72-25,230.24-9,899.28

Finding the Fourth Proportional to 18,282.72, 25,230.24 and 9,899.28

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Solution

The fourth proportional to 18,282.72, 25,230.24 and 9,899.28 is: 13,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.72 : 25,230.24 = 9,899.28 : x
  2. Step 2: Convert to fraction form
    18,282.72/25,230.24 = 9,899.28/x
  3. Step 3: Cross multiply
    18,282.72x = 25,230.24 × 9,899.28
  4. Step 4: Simplify right side
    18,282.72x = 249,761,210.23
  5. Step 5: Solve for x
    x = 249,761,210.23/18,282.72
  6. Step 6: Final answer
    x = 13,661.05

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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.