Home / 10,391.40-15,587.19-2,995.88

Finding the Fourth Proportional to 10,391.40, 15,587.19 and 2,995.88

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Solution

The fourth proportional to 10,391.40, 15,587.19 and 2,995.88 is: 4,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.40 : 15,587.19 = 2,995.88 : x
  2. Step 2: Convert to fraction form
    10,391.40/15,587.19 = 2,995.88/x
  3. Step 3: Cross multiply
    10,391.40x = 15,587.19 × 2,995.88
  4. Step 4: Simplify right side
    10,391.40x = 46,697,272.84
  5. Step 5: Solve for x
    x = 46,697,272.84/10,391.40
  6. Step 6: Final answer
    x = 4,493.84

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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.