Home / 7,518.96-11,278.44-4,140.72

Finding the Fourth Proportional to 7,518.96, 11,278.44 and 4,140.72

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Solution

The fourth proportional to 7,518.96, 11,278.44 and 4,140.72 is: 6,211.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.96 : 11,278.44 = 4,140.72 : x
  2. Step 2: Convert to fraction form
    7,518.96/11,278.44 = 4,140.72/x
  3. Step 3: Cross multiply
    7,518.96x = 11,278.44 × 4,140.72
  4. Step 4: Simplify right side
    7,518.96x = 46,700,862.08
  5. Step 5: Solve for x
    x = 46,700,862.08/7,518.96
  6. Step 6: Final answer
    x = 6,211.08

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.