Home / 11,275.75-15,561.26-6,307.75

Finding the Fourth Proportional to 11,275.75, 15,561.26 and 6,307.75

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Solution

The fourth proportional to 11,275.75, 15,561.26 and 6,307.75 is: 8,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.75 : 15,561.26 = 6,307.75 : x
  2. Step 2: Convert to fraction form
    11,275.75/15,561.26 = 6,307.75/x
  3. Step 3: Cross multiply
    11,275.75x = 15,561.26 × 6,307.75
  4. Step 4: Simplify right side
    11,275.75x = 98,156,537.77
  5. Step 5: Solve for x
    x = 98,156,537.77/11,275.75
  6. Step 6: Final answer
    x = 8,705.10

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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.