Home / 9,072.48-12,519.60-5,345.76

Finding the Fourth Proportional to 9,072.48, 12,519.60 and 5,345.76

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Solution

The fourth proportional to 9,072.48, 12,519.60 and 5,345.76 is: 7,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.48 : 12,519.60 = 5,345.76 : x
  2. Step 2: Convert to fraction form
    9,072.48/12,519.60 = 5,345.76/x
  3. Step 3: Cross multiply
    9,072.48x = 12,519.60 × 5,345.76
  4. Step 4: Simplify right side
    9,072.48x = 66,926,776.90
  5. Step 5: Solve for x
    x = 66,926,776.90/9,072.48
  6. Step 6: Final answer
    x = 7,376.90

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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.