Home / 11,145.50-15,381.16-6,110.13

Finding the Fourth Proportional to 11,145.50, 15,381.16 and 6,110.13

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Solution

The fourth proportional to 11,145.50, 15,381.16 and 6,110.13 is: 8,432.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.50 : 15,381.16 = 6,110.13 : x
  2. Step 2: Convert to fraction form
    11,145.50/15,381.16 = 6,110.13/x
  3. Step 3: Cross multiply
    11,145.50x = 15,381.16 × 6,110.13
  4. Step 4: Simplify right side
    11,145.50x = 93,980,929.55
  5. Step 5: Solve for x
    x = 93,980,929.55/11,145.50
  6. Step 6: Final answer
    x = 8,432.19

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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.