Home / 11,239.10-15,509.66-6,203.20

Finding the Fourth Proportional to 11,239.10, 15,509.66 and 6,203.20

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Solution

The fourth proportional to 11,239.10, 15,509.66 and 6,203.20 is: 8,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.10 : 15,509.66 = 6,203.20 : x
  2. Step 2: Convert to fraction form
    11,239.10/15,509.66 = 6,203.20/x
  3. Step 3: Cross multiply
    11,239.10x = 15,509.66 × 6,203.20
  4. Step 4: Simplify right side
    11,239.10x = 96,209,522.91
  5. Step 5: Solve for x
    x = 96,209,522.91/11,239.10
  6. Step 6: Final answer
    x = 8,560.25

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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.