Home / 13,031.28-17,972.28-10,669.32

Finding the Fourth Proportional to 13,031.28, 17,972.28 and 10,669.32

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Solution

The fourth proportional to 13,031.28, 17,972.28 and 10,669.32 is: 14,714.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.28 : 17,972.28 = 10,669.32 : x
  2. Step 2: Convert to fraction form
    13,031.28/17,972.28 = 10,669.32/x
  3. Step 3: Cross multiply
    13,031.28x = 17,972.28 × 10,669.32
  4. Step 4: Simplify right side
    13,031.28x = 191,752,006.45
  5. Step 5: Solve for x
    x = 191,752,006.45/13,031.28
  6. Step 6: Final answer
    x = 14,714.75

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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.