Home / 10,366.02-14,305.38-6,389.76

Finding the Fourth Proportional to 10,366.02, 14,305.38 and 6,389.76

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Solution

The fourth proportional to 10,366.02, 14,305.38 and 6,389.76 is: 8,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.02 : 14,305.38 = 6,389.76 : x
  2. Step 2: Convert to fraction form
    10,366.02/14,305.38 = 6,389.76/x
  3. Step 3: Cross multiply
    10,366.02x = 14,305.38 × 6,389.76
  4. Step 4: Simplify right side
    10,366.02x = 91,407,944.91
  5. Step 5: Solve for x
    x = 91,407,944.91/10,366.02
  6. Step 6: Final answer
    x = 8,818.04

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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.