Home / 10,878.47-15,011.48-6,162.65

Finding the Fourth Proportional to 10,878.47, 15,011.48 and 6,162.65

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Solution

The fourth proportional to 10,878.47, 15,011.48 and 6,162.65 is: 8,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.47 : 15,011.48 = 6,162.65 : x
  2. Step 2: Convert to fraction form
    10,878.47/15,011.48 = 6,162.65/x
  3. Step 3: Cross multiply
    10,878.47x = 15,011.48 × 6,162.65
  4. Step 4: Simplify right side
    10,878.47x = 92,510,459.20
  5. Step 5: Solve for x
    x = 92,510,459.20/10,878.47
  6. Step 6: Final answer
    x = 8,504.00

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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.