Home / 7,876.29-11,810.32-3,715.17

Finding the Fourth Proportional to 7,876.29, 11,810.32 and 3,715.17

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Solution

The fourth proportional to 7,876.29, 11,810.32 and 3,715.17 is: 5,570.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.29 : 11,810.32 = 3,715.17 : x
  2. Step 2: Convert to fraction form
    7,876.29/11,810.32 = 3,715.17/x
  3. Step 3: Cross multiply
    7,876.29x = 11,810.32 × 3,715.17
  4. Step 4: Simplify right side
    7,876.29x = 43,877,346.55
  5. Step 5: Solve for x
    x = 43,877,346.55/7,876.29
  6. Step 6: Final answer
    x = 5,570.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.