Home / 10,111.92-15,161.40-6,983.16

Finding the Fourth Proportional to 10,111.92, 15,161.40 and 6,983.16

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Solution

The fourth proportional to 10,111.92, 15,161.40 and 6,983.16 is: 10,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,111.92 : 15,161.40 = 6,983.16 : x
  2. Step 2: Convert to fraction form
    10,111.92/15,161.40 = 6,983.16/x
  3. Step 3: Cross multiply
    10,111.92x = 15,161.40 × 6,983.16
  4. Step 4: Simplify right side
    10,111.92x = 105,874,482.02
  5. Step 5: Solve for x
    x = 105,874,482.02/10,111.92
  6. Step 6: Final answer
    x = 10,470.26

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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.