Home / 13,437.18-18,543.54-7,469.10

Finding the Fourth Proportional to 13,437.18, 18,543.54 and 7,469.10

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Solution

The fourth proportional to 13,437.18, 18,543.54 and 7,469.10 is: 10,307.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.18 : 18,543.54 = 7,469.10 : x
  2. Step 2: Convert to fraction form
    13,437.18/18,543.54 = 7,469.10/x
  3. Step 3: Cross multiply
    13,437.18x = 18,543.54 × 7,469.10
  4. Step 4: Simplify right side
    13,437.18x = 138,503,554.61
  5. Step 5: Solve for x
    x = 138,503,554.61/13,437.18
  6. Step 6: Final answer
    x = 10,307.49

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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.