Home / 13,445.18-18,552.31-7,476.90

Finding the Fourth Proportional to 13,445.18, 18,552.31 and 7,476.90

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Solution

The fourth proportional to 13,445.18, 18,552.31 and 7,476.90 is: 10,316.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.18 : 18,552.31 = 7,476.90 : x
  2. Step 2: Convert to fraction form
    13,445.18/18,552.31 = 7,476.90/x
  3. Step 3: Cross multiply
    13,445.18x = 18,552.31 × 7,476.90
  4. Step 4: Simplify right side
    13,445.18x = 138,713,766.64
  5. Step 5: Solve for x
    x = 138,713,766.64/13,445.18
  6. Step 6: Final answer
    x = 10,316.99

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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.