Home / 10,877.16-15,008.32-6,401.12

Finding the Fourth Proportional to 10,877.16, 15,008.32 and 6,401.12

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Solution

The fourth proportional to 10,877.16, 15,008.32 and 6,401.12 is: 8,832.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.16 : 15,008.32 = 6,401.12 : x
  2. Step 2: Convert to fraction form
    10,877.16/15,008.32 = 6,401.12/x
  3. Step 3: Cross multiply
    10,877.16x = 15,008.32 × 6,401.12
  4. Step 4: Simplify right side
    10,877.16x = 96,070,057.32
  5. Step 5: Solve for x
    x = 96,070,057.32/10,877.16
  6. Step 6: Final answer
    x = 8,832.27

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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.