Home / 15,372.96-21,206.40-10,277.28

Finding the Fourth Proportional to 15,372.96, 21,206.40 and 10,277.28

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Solution

The fourth proportional to 15,372.96, 21,206.40 and 10,277.28 is: 14,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.96 : 21,206.40 = 10,277.28 : x
  2. Step 2: Convert to fraction form
    15,372.96/21,206.40 = 10,277.28/x
  3. Step 3: Cross multiply
    15,372.96x = 21,206.40 × 10,277.28
  4. Step 4: Simplify right side
    15,372.96x = 217,944,110.59
  5. Step 5: Solve for x
    x = 217,944,110.59/15,372.96
  6. Step 6: Final answer
    x = 14,177.11

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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.