Home / 15,700.73-21,667.19-8,627.15

Finding the Fourth Proportional to 15,700.73, 21,667.19 and 8,627.15

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Solution

The fourth proportional to 15,700.73, 21,667.19 and 8,627.15 is: 11,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.73 : 21,667.19 = 8,627.15 : x
  2. Step 2: Convert to fraction form
    15,700.73/21,667.19 = 8,627.15/x
  3. Step 3: Cross multiply
    15,700.73x = 21,667.19 × 8,627.15
  4. Step 4: Simplify right side
    15,700.73x = 186,926,109.24
  5. Step 5: Solve for x
    x = 186,926,109.24/15,700.73
  6. Step 6: Final answer
    x = 11,905.57

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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.