Home / 8,316.88-12,475.26-3,386.56

Finding the Fourth Proportional to 8,316.88, 12,475.26 and 3,386.56

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Solution

The fourth proportional to 8,316.88, 12,475.26 and 3,386.56 is: 5,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.88 : 12,475.26 = 3,386.56 : x
  2. Step 2: Convert to fraction form
    8,316.88/12,475.26 = 3,386.56/x
  3. Step 3: Cross multiply
    8,316.88x = 12,475.26 × 3,386.56
  4. Step 4: Simplify right side
    8,316.88x = 42,248,216.51
  5. Step 5: Solve for x
    x = 42,248,216.51/8,316.88
  6. Step 6: Final answer
    x = 5,079.82

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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.