Home / 13,378.02-20,060.20-4,490.29

Finding the Fourth Proportional to 13,378.02, 20,060.20 and 4,490.29

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Solution

The fourth proportional to 13,378.02, 20,060.20 and 4,490.29 is: 6,733.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.02 : 20,060.20 = 4,490.29 : x
  2. Step 2: Convert to fraction form
    13,378.02/20,060.20 = 4,490.29/x
  3. Step 3: Cross multiply
    13,378.02x = 20,060.20 × 4,490.29
  4. Step 4: Simplify right side
    13,378.02x = 90,076,115.46
  5. Step 5: Solve for x
    x = 90,076,115.46/13,378.02
  6. Step 6: Final answer
    x = 6,733.14

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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.