Home / 10,333.12-14,255.36-6,139.20

Finding the Fourth Proportional to 10,333.12, 14,255.36 and 6,139.20

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Solution

The fourth proportional to 10,333.12, 14,255.36 and 6,139.20 is: 8,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,333.12 : 14,255.36 = 6,139.20 : x
  2. Step 2: Convert to fraction form
    10,333.12/14,255.36 = 6,139.20/x
  3. Step 3: Cross multiply
    10,333.12x = 14,255.36 × 6,139.20
  4. Step 4: Simplify right side
    10,333.12x = 87,516,506.11
  5. Step 5: Solve for x
    x = 87,516,506.11/10,333.12
  6. Step 6: Final answer
    x = 8,469.51

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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.