Home / 9,670.40-13,345.12-5,479.44

Finding the Fourth Proportional to 9,670.40, 13,345.12 and 5,479.44

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Solution

The fourth proportional to 9,670.40, 13,345.12 and 5,479.44 is: 7,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.40 : 13,345.12 = 5,479.44 : x
  2. Step 2: Convert to fraction form
    9,670.40/13,345.12 = 5,479.44/x
  3. Step 3: Cross multiply
    9,670.40x = 13,345.12 × 5,479.44
  4. Step 4: Simplify right side
    9,670.40x = 73,123,784.33
  5. Step 5: Solve for x
    x = 73,123,784.33/9,670.40
  6. Step 6: Final answer
    x = 7,561.61

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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.