Home / 10,219.44-15,359.74-8,475.92

Finding the Fourth Proportional to 10,219.44, 15,359.74 and 8,475.92

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Solution

The fourth proportional to 10,219.44, 15,359.74 and 8,475.92 is: 12,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.44 : 15,359.74 = 8,475.92 : x
  2. Step 2: Convert to fraction form
    10,219.44/15,359.74 = 8,475.92/x
  3. Step 3: Cross multiply
    10,219.44x = 15,359.74 × 8,475.92
  4. Step 4: Simplify right side
    10,219.44x = 130,187,927.46
  5. Step 5: Solve for x
    x = 130,187,927.46/10,219.44
  6. Step 6: Final answer
    x = 12,739.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.