Home / 12,360.25-18,532.14-6,422.55

Finding the Fourth Proportional to 12,360.25, 18,532.14 and 6,422.55

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Solution

The fourth proportional to 12,360.25, 18,532.14 and 6,422.55 is: 9,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.25 : 18,532.14 = 6,422.55 : x
  2. Step 2: Convert to fraction form
    12,360.25/18,532.14 = 6,422.55/x
  3. Step 3: Cross multiply
    12,360.25x = 18,532.14 × 6,422.55
  4. Step 4: Simplify right side
    12,360.25x = 119,023,595.76
  5. Step 5: Solve for x
    x = 119,023,595.76/12,360.25
  6. Step 6: Final answer
    x = 9,629.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.