Home / 10,085.66-15,117.28-7,612.46

Finding the Fourth Proportional to 10,085.66, 15,117.28 and 7,612.46

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Solution

The fourth proportional to 10,085.66, 15,117.28 and 7,612.46 is: 11,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.66 : 15,117.28 = 7,612.46 : x
  2. Step 2: Convert to fraction form
    10,085.66/15,117.28 = 7,612.46/x
  3. Step 3: Cross multiply
    10,085.66x = 15,117.28 × 7,612.46
  4. Step 4: Simplify right side
    10,085.66x = 115,079,689.31
  5. Step 5: Solve for x
    x = 115,079,689.31/10,085.66
  6. Step 6: Final answer
    x = 11,410.23

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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.