Home / 15,780.22-23,667.93-9,918.94

Finding the Fourth Proportional to 15,780.22, 23,667.93 and 9,918.94

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Solution

The fourth proportional to 15,780.22, 23,667.93 and 9,918.94 is: 14,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.22 : 23,667.93 = 9,918.94 : x
  2. Step 2: Convert to fraction form
    15,780.22/23,667.93 = 9,918.94/x
  3. Step 3: Cross multiply
    15,780.22x = 23,667.93 × 9,918.94
  4. Step 4: Simplify right side
    15,780.22x = 234,760,777.59
  5. Step 5: Solve for x
    x = 234,760,777.59/15,780.22
  6. Step 6: Final answer
    x = 14,876.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.