Home / 15,893.15-21,930.07-9,177.49

Finding the Fourth Proportional to 15,893.15, 21,930.07 and 9,177.49

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Solution

The fourth proportional to 15,893.15, 21,930.07 and 9,177.49 is: 12,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.15 : 21,930.07 = 9,177.49 : x
  2. Step 2: Convert to fraction form
    15,893.15/21,930.07 = 9,177.49/x
  3. Step 3: Cross multiply
    15,893.15x = 21,930.07 × 9,177.49
  4. Step 4: Simplify right side
    15,893.15x = 201,262,842.59
  5. Step 5: Solve for x
    x = 201,262,842.59/15,893.15
  6. Step 6: Final answer
    x = 12,663.50

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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.