Home / 10,931.22-15,084-6,393.24

Finding the Fourth Proportional to 10,931.22, 15,084 and 6,393.24

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Solution

The fourth proportional to 10,931.22, 15,084 and 6,393.24 is: 8,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.22 : 15,084 = 6,393.24 : x
  2. Step 2: Convert to fraction form
    10,931.22/15,084 = 6,393.24/x
  3. Step 3: Cross multiply
    10,931.22x = 15,084 × 6,393.24
  4. Step 4: Simplify right side
    10,931.22x = 96,435,632.16
  5. Step 5: Solve for x
    x = 96,435,632.16/10,931.22
  6. Step 6: Final answer
    x = 8,822.04

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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.