Home / 10,878.08-15,010.84-6,401.10

Finding the Fourth Proportional to 10,878.08, 15,010.84 and 6,401.10

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Solution

The fourth proportional to 10,878.08, 15,010.84 and 6,401.10 is: 8,832.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.08 : 15,010.84 = 6,401.10 : x
  2. Step 2: Convert to fraction form
    10,878.08/15,010.84 = 6,401.10/x
  3. Step 3: Cross multiply
    10,878.08x = 15,010.84 × 6,401.10
  4. Step 4: Simplify right side
    10,878.08x = 96,085,887.92
  5. Step 5: Solve for x
    x = 96,085,887.92/10,878.08
  6. Step 6: Final answer
    x = 8,832.98

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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.