Home / 13,443.71-18,552.20-7,475.51

Finding the Fourth Proportional to 13,443.71, 18,552.20 and 7,475.51

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Solution

The fourth proportional to 13,443.71, 18,552.20 and 7,475.51 is: 10,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.71 : 18,552.20 = 7,475.51 : x
  2. Step 2: Convert to fraction form
    13,443.71/18,552.20 = 7,475.51/x
  3. Step 3: Cross multiply
    13,443.71x = 18,552.20 × 7,475.51
  4. Step 4: Simplify right side
    13,443.71x = 138,687,165.62
  5. Step 5: Solve for x
    x = 138,687,165.62/13,443.71
  6. Step 6: Final answer
    x = 10,316.14

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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.