Home / 10,382.02-14,327.46-6,405.76

Finding the Fourth Proportional to 10,382.02, 14,327.46 and 6,405.76

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Solution

The fourth proportional to 10,382.02, 14,327.46 and 6,405.76 is: 8,840.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.02 : 14,327.46 = 6,405.76 : x
  2. Step 2: Convert to fraction form
    10,382.02/14,327.46 = 6,405.76/x
  3. Step 3: Cross multiply
    10,382.02x = 14,327.46 × 6,405.76
  4. Step 4: Simplify right side
    10,382.02x = 91,778,270.17
  5. Step 5: Solve for x
    x = 91,778,270.17/10,382.02
  6. Step 6: Final answer
    x = 8,840.12

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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.