Home / 7,555.71-10,415.16-6,436.29

Finding the Fourth Proportional to 7,555.71, 10,415.16 and 6,436.29

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Solution

The fourth proportional to 7,555.71, 10,415.16 and 6,436.29 is: 8,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.71 : 10,415.16 = 6,436.29 : x
  2. Step 2: Convert to fraction form
    7,555.71/10,415.16 = 6,436.29/x
  3. Step 3: Cross multiply
    7,555.71x = 10,415.16 × 6,436.29
  4. Step 4: Simplify right side
    7,555.71x = 67,034,990.16
  5. Step 5: Solve for x
    x = 67,034,990.16/7,555.71
  6. Step 6: Final answer
    x = 8,872.10

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Double scale
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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.