Home / 10,316.80-15,473.40-3,391.32

Finding the Fourth Proportional to 10,316.80, 15,473.40 and 3,391.32

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Solution

The fourth proportional to 10,316.80, 15,473.40 and 3,391.32 is: 5,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.80 : 15,473.40 = 3,391.32 : x
  2. Step 2: Convert to fraction form
    10,316.80/15,473.40 = 3,391.32/x
  3. Step 3: Cross multiply
    10,316.80x = 15,473.40 × 3,391.32
  4. Step 4: Simplify right side
    10,316.80x = 52,475,250.89
  5. Step 5: Solve for x
    x = 52,475,250.89/10,316.80
  6. Step 6: Final answer
    x = 5,086.39

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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.