Home / 11,213.89-15,475.10-6,178.00

Finding the Fourth Proportional to 11,213.89, 15,475.10 and 6,178.00

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Solution

The fourth proportional to 11,213.89, 15,475.10 and 6,178.00 is: 8,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.89 : 15,475.10 = 6,178.00 : x
  2. Step 2: Convert to fraction form
    11,213.89/15,475.10 = 6,178.00/x
  3. Step 3: Cross multiply
    11,213.89x = 15,475.10 × 6,178.00
  4. Step 4: Simplify right side
    11,213.89x = 95,605,118.47
  5. Step 5: Solve for x
    x = 95,605,118.47/11,213.89
  6. Step 6: Final answer
    x = 8,525.60

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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.