Home / 10,962.20-15,125.58-6,486.08

Finding the Fourth Proportional to 10,962.20, 15,125.58 and 6,486.08

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Solution

The fourth proportional to 10,962.20, 15,125.58 and 6,486.08 is: 8,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.20 : 15,125.58 = 6,486.08 : x
  2. Step 2: Convert to fraction form
    10,962.20/15,125.58 = 6,486.08/x
  3. Step 3: Cross multiply
    10,962.20x = 15,125.58 × 6,486.08
  4. Step 4: Simplify right side
    10,962.20x = 98,105,721.93
  5. Step 5: Solve for x
    x = 98,105,721.93/10,962.20
  6. Step 6: Final answer
    x = 8,949.46

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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.