Home / 12,531.05-17,253.38-10,638.89

Finding the Fourth Proportional to 12,531.05, 17,253.38 and 10,638.89

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Solution

The fourth proportional to 12,531.05, 17,253.38 and 10,638.89 is: 14,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.05 : 17,253.38 = 10,638.89 : x
  2. Step 2: Convert to fraction form
    12,531.05/17,253.38 = 10,638.89/x
  3. Step 3: Cross multiply
    12,531.05x = 17,253.38 × 10,638.89
  4. Step 4: Simplify right side
    12,531.05x = 183,556,752.28
  5. Step 5: Solve for x
    x = 183,556,752.28/12,531.05
  6. Step 6: Final answer
    x = 14,648.16

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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.