Home / 11,317.16-15,618.22-7,070.74

Finding the Fourth Proportional to 11,317.16, 15,618.22 and 7,070.74

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Solution

The fourth proportional to 11,317.16, 15,618.22 and 7,070.74 is: 9,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.16 : 15,618.22 = 7,070.74 : x
  2. Step 2: Convert to fraction form
    11,317.16/15,618.22 = 7,070.74/x
  3. Step 3: Cross multiply
    11,317.16x = 15,618.22 × 7,070.74
  4. Step 4: Simplify right side
    11,317.16x = 110,432,372.88
  5. Step 5: Solve for x
    x = 110,432,372.88/11,317.16
  6. Step 6: Final answer
    x = 9,757.96

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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.