Home / 9,148.87-12,618.95-7,745.55

Finding the Fourth Proportional to 9,148.87, 12,618.95 and 7,745.55

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Solution

The fourth proportional to 9,148.87, 12,618.95 and 7,745.55 is: 10,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.87 : 12,618.95 = 7,745.55 : x
  2. Step 2: Convert to fraction form
    9,148.87/12,618.95 = 7,745.55/x
  3. Step 3: Cross multiply
    9,148.87x = 12,618.95 × 7,745.55
  4. Step 4: Simplify right side
    9,148.87x = 97,740,708.17
  5. Step 5: Solve for x
    x = 97,740,708.17/9,148.87
  6. Step 6: Final answer
    x = 10,683.36

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Similar ratio
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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.