Home / 13,337.30-18,405.10-7,368.90

Finding the Fourth Proportional to 13,337.30, 18,405.10 and 7,368.90

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Solution

The fourth proportional to 13,337.30, 18,405.10 and 7,368.90 is: 10,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.30 : 18,405.10 = 7,368.90 : x
  2. Step 2: Convert to fraction form
    13,337.30/18,405.10 = 7,368.90/x
  3. Step 3: Cross multiply
    13,337.30x = 18,405.10 × 7,368.90
  4. Step 4: Simplify right side
    13,337.30x = 135,625,341.39
  5. Step 5: Solve for x
    x = 135,625,341.39/13,337.30
  6. Step 6: Final answer
    x = 10,168.88

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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.