Home / 8,344.40-11,515.30-5,360.26

Finding the Fourth Proportional to 8,344.40, 11,515.30 and 5,360.26

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Solution

The fourth proportional to 8,344.40, 11,515.30 and 5,360.26 is: 7,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.40 : 11,515.30 = 5,360.26 : x
  2. Step 2: Convert to fraction form
    8,344.40/11,515.30 = 5,360.26/x
  3. Step 3: Cross multiply
    8,344.40x = 11,515.30 × 5,360.26
  4. Step 4: Simplify right side
    8,344.40x = 61,724,959.79
  5. Step 5: Solve for x
    x = 61,724,959.79/8,344.40
  6. Step 6: Final answer
    x = 7,397.18

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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.