Home / 9,690.46-13,371.98-5,440.66

Finding the Fourth Proportional to 9,690.46, 13,371.98 and 5,440.66

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Solution

The fourth proportional to 9,690.46, 13,371.98 and 5,440.66 is: 7,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690.46 : 13,371.98 = 5,440.66 : x
  2. Step 2: Convert to fraction form
    9,690.46/13,371.98 = 5,440.66/x
  3. Step 3: Cross multiply
    9,690.46x = 13,371.98 × 5,440.66
  4. Step 4: Simplify right side
    9,690.46x = 72,752,396.71
  5. Step 5: Solve for x
    x = 72,752,396.71/9,690.46
  6. Step 6: Final answer
    x = 7,507.63

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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.