Home / 10,382.10-14,312.46-6,400.56

Finding the Fourth Proportional to 10,382.10, 14,312.46 and 6,400.56

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Solution

The fourth proportional to 10,382.10, 14,312.46 and 6,400.56 is: 8,823.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.10 : 14,312.46 = 6,400.56 : x
  2. Step 2: Convert to fraction form
    10,382.10/14,312.46 = 6,400.56/x
  3. Step 3: Cross multiply
    10,382.10x = 14,312.46 × 6,400.56
  4. Step 4: Simplify right side
    10,382.10x = 91,607,758.98
  5. Step 5: Solve for x
    x = 91,607,758.98/10,382.10
  6. Step 6: Final answer
    x = 8,823.63

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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.