Home / 12,508.75-17,264.39-8,038.09

Finding the Fourth Proportional to 12,508.75, 17,264.39 and 8,038.09

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Solution

The fourth proportional to 12,508.75, 17,264.39 and 8,038.09 is: 11,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.75 : 17,264.39 = 8,038.09 : x
  2. Step 2: Convert to fraction form
    12,508.75/17,264.39 = 8,038.09/x
  3. Step 3: Cross multiply
    12,508.75x = 17,264.39 × 8,038.09
  4. Step 4: Simplify right side
    12,508.75x = 138,772,594.10
  5. Step 5: Solve for x
    x = 138,772,594.10/12,508.75
  6. Step 6: Final answer
    x = 11,094.05

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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.