Home / 11,275.20-15,559.62-6,307.20

Finding the Fourth Proportional to 11,275.20, 15,559.62 and 6,307.20

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Solution

The fourth proportional to 11,275.20, 15,559.62 and 6,307.20 is: 8,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.20 : 15,559.62 = 6,307.20 : x
  2. Step 2: Convert to fraction form
    11,275.20/15,559.62 = 6,307.20/x
  3. Step 3: Cross multiply
    11,275.20x = 15,559.62 × 6,307.20
  4. Step 4: Simplify right side
    11,275.20x = 98,137,635.26
  5. Step 5: Solve for x
    x = 98,137,635.26/11,275.20
  6. Step 6: Final answer
    x = 8,703.85

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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.