Home / 14,718.16-20,311.28-8,003.76

Finding the Fourth Proportional to 14,718.16, 20,311.28 and 8,003.76

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Solution

The fourth proportional to 14,718.16, 20,311.28 and 8,003.76 is: 11,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.16 : 20,311.28 = 8,003.76 : x
  2. Step 2: Convert to fraction form
    14,718.16/20,311.28 = 8,003.76/x
  3. Step 3: Cross multiply
    14,718.16x = 20,311.28 × 8,003.76
  4. Step 4: Simplify right side
    14,718.16x = 162,566,610.41
  5. Step 5: Solve for x
    x = 162,566,610.41/14,718.16
  6. Step 6: Final answer
    x = 11,045.31

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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.