Home / 13,440.02-20,132.30-7,876.46

Finding the Fourth Proportional to 13,440.02, 20,132.30 and 7,876.46

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Solution

The fourth proportional to 13,440.02, 20,132.30 and 7,876.46 is: 11,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.02 : 20,132.30 = 7,876.46 : x
  2. Step 2: Convert to fraction form
    13,440.02/20,132.30 = 7,876.46/x
  3. Step 3: Cross multiply
    13,440.02x = 20,132.30 × 7,876.46
  4. Step 4: Simplify right side
    13,440.02x = 158,571,255.66
  5. Step 5: Solve for x
    x = 158,571,255.66/13,440.02
  6. Step 6: Final answer
    x = 11,798.44

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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.