Home / 26,519.32-39,776.40-8,987.08

Finding the Fourth Proportional to 26,519.32, 39,776.40 and 8,987.08

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Solution

The fourth proportional to 26,519.32, 39,776.40 and 8,987.08 is: 13,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,519.32 : 39,776.40 = 8,987.08 : x
  2. Step 2: Convert to fraction form
    26,519.32/39,776.40 = 8,987.08/x
  3. Step 3: Cross multiply
    26,519.32x = 39,776.40 × 8,987.08
  4. Step 4: Simplify right side
    26,519.32x = 357,473,688.91
  5. Step 5: Solve for x
    x = 357,473,688.91/26,519.32
  6. Step 6: Final answer
    x = 13,479.75

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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.