Home / 10,391.40-15,587.10-6,244.20

Finding the Fourth Proportional to 10,391.40, 15,587.10 and 6,244.20

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Solution

The fourth proportional to 10,391.40, 15,587.10 and 6,244.20 is: 9,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.40 : 15,587.10 = 6,244.20 : x
  2. Step 2: Convert to fraction form
    10,391.40/15,587.10 = 6,244.20/x
  3. Step 3: Cross multiply
    10,391.40x = 15,587.10 × 6,244.20
  4. Step 4: Simplify right side
    10,391.40x = 97,328,969.82
  5. Step 5: Solve for x
    x = 97,328,969.82/10,391.40
  6. Step 6: Final answer
    x = 9,366.30

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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.