Home / 9,148.46-12,625.02-5,115.74

Finding the Fourth Proportional to 9,148.46, 12,625.02 and 5,115.74

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Solution

The fourth proportional to 9,148.46, 12,625.02 and 5,115.74 is: 7,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.46 : 12,625.02 = 5,115.74 : x
  2. Step 2: Convert to fraction form
    9,148.46/12,625.02 = 5,115.74/x
  3. Step 3: Cross multiply
    9,148.46x = 12,625.02 × 5,115.74
  4. Step 4: Simplify right side
    9,148.46x = 64,586,319.81
  5. Step 5: Solve for x
    x = 64,586,319.81/9,148.46
  6. Step 6: Final answer
    x = 7,059.80

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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.