Home / 10,335.49-15,505.38-5,403.79

Finding the Fourth Proportional to 10,335.49, 15,505.38 and 5,403.79

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Solution

The fourth proportional to 10,335.49, 15,505.38 and 5,403.79 is: 8,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,335.49 : 15,505.38 = 5,403.79 : x
  2. Step 2: Convert to fraction form
    10,335.49/15,505.38 = 5,403.79/x
  3. Step 3: Cross multiply
    10,335.49x = 15,505.38 × 5,403.79
  4. Step 4: Simplify right side
    10,335.49x = 83,787,817.39
  5. Step 5: Solve for x
    x = 83,787,817.39/10,335.49
  6. Step 6: Final answer
    x = 8,106.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.