Home / 17,889.78-24,679.32-12,587.52

Finding the Fourth Proportional to 17,889.78, 24,679.32 and 12,587.52

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Solution

The fourth proportional to 17,889.78, 24,679.32 and 12,587.52 is: 17,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.78 : 24,679.32 = 12,587.52 : x
  2. Step 2: Convert to fraction form
    17,889.78/24,679.32 = 12,587.52/x
  3. Step 3: Cross multiply
    17,889.78x = 24,679.32 × 12,587.52
  4. Step 4: Simplify right side
    17,889.78x = 310,651,434.09
  5. Step 5: Solve for x
    x = 310,651,434.09/17,889.78
  6. Step 6: Final answer
    x = 17,364.74

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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.