Home / 17,720.32-26,565.40-7,854.20

Finding the Fourth Proportional to 17,720.32, 26,565.40 and 7,854.20

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Solution

The fourth proportional to 17,720.32, 26,565.40 and 7,854.20 is: 11,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.32 : 26,565.40 = 7,854.20 : x
  2. Step 2: Convert to fraction form
    17,720.32/26,565.40 = 7,854.20/x
  3. Step 3: Cross multiply
    17,720.32x = 26,565.40 × 7,854.20
  4. Step 4: Simplify right side
    17,720.32x = 208,649,964.68
  5. Step 5: Solve for x
    x = 208,649,964.68/17,720.32
  6. Step 6: Final answer
    x = 11,774.62

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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.