Home / 12,857.23-17,750.40-10,031.14

Finding the Fourth Proportional to 12,857.23, 17,750.40 and 10,031.14

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Solution

The fourth proportional to 12,857.23, 17,750.40 and 10,031.14 is: 13,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.23 : 17,750.40 = 10,031.14 : x
  2. Step 2: Convert to fraction form
    12,857.23/17,750.40 = 10,031.14/x
  3. Step 3: Cross multiply
    12,857.23x = 17,750.40 × 10,031.14
  4. Step 4: Simplify right side
    12,857.23x = 178,056,747.46
  5. Step 5: Solve for x
    x = 178,056,747.46/12,857.23
  6. Step 6: Final answer
    x = 13,848.76

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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.