Home / 9,913.26-13,680.48-5,436.74

Finding the Fourth Proportional to 9,913.26, 13,680.48 and 5,436.74

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Solution

The fourth proportional to 9,913.26, 13,680.48 and 5,436.74 is: 7,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.26 : 13,680.48 = 5,436.74 : x
  2. Step 2: Convert to fraction form
    9,913.26/13,680.48 = 5,436.74/x
  3. Step 3: Cross multiply
    9,913.26x = 13,680.48 × 5,436.74
  4. Step 4: Simplify right side
    9,913.26x = 74,377,212.84
  5. Step 5: Solve for x
    x = 74,377,212.84/9,913.26
  6. Step 6: Final answer
    x = 7,502.80

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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.