Home / 13,316.05-18,375.01-7,648.95

Finding the Fourth Proportional to 13,316.05, 18,375.01 and 7,648.95

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Solution

The fourth proportional to 13,316.05, 18,375.01 and 7,648.95 is: 10,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.05 : 18,375.01 = 7,648.95 : x
  2. Step 2: Convert to fraction form
    13,316.05/18,375.01 = 7,648.95/x
  3. Step 3: Cross multiply
    13,316.05x = 18,375.01 × 7,648.95
  4. Step 4: Simplify right side
    13,316.05x = 140,549,532.74
  5. Step 5: Solve for x
    x = 140,549,532.74/13,316.05
  6. Step 6: Final answer
    x = 10,554.90

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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.