Home / 12,915.24-19,373.70-4,150.20

Finding the Fourth Proportional to 12,915.24, 19,373.70 and 4,150.20

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Solution

The fourth proportional to 12,915.24, 19,373.70 and 4,150.20 is: 6,225.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.24 : 19,373.70 = 4,150.20 : x
  2. Step 2: Convert to fraction form
    12,915.24/19,373.70 = 4,150.20/x
  3. Step 3: Cross multiply
    12,915.24x = 19,373.70 × 4,150.20
  4. Step 4: Simplify right side
    12,915.24x = 80,404,729.74
  5. Step 5: Solve for x
    x = 80,404,729.74/12,915.24
  6. Step 6: Final answer
    x = 6,225.57

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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.