Home / 11,345.68-15,651.96-6,627.88

Finding the Fourth Proportional to 11,345.68, 15,651.96 and 6,627.88

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Solution

The fourth proportional to 11,345.68, 15,651.96 and 6,627.88 is: 9,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.68 : 15,651.96 = 6,627.88 : x
  2. Step 2: Convert to fraction form
    11,345.68/15,651.96 = 6,627.88/x
  3. Step 3: Cross multiply
    11,345.68x = 15,651.96 × 6,627.88
  4. Step 4: Simplify right side
    11,345.68x = 103,739,312.64
  5. Step 5: Solve for x
    x = 103,739,312.64/11,345.68
  6. Step 6: Final answer
    x = 9,143.51

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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.