Home / 13,442.84-18,549.96-7,474.40

Finding the Fourth Proportional to 13,442.84, 18,549.96 and 7,474.40

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Solution

The fourth proportional to 13,442.84, 18,549.96 and 7,474.40 is: 10,314.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.84 : 18,549.96 = 7,474.40 : x
  2. Step 2: Convert to fraction form
    13,442.84/18,549.96 = 7,474.40/x
  3. Step 3: Cross multiply
    13,442.84x = 18,549.96 × 7,474.40
  4. Step 4: Simplify right side
    13,442.84x = 138,649,821.02
  5. Step 5: Solve for x
    x = 138,649,821.02/13,442.84
  6. Step 6: Final answer
    x = 10,314.03

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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.