Home / 15,750.59-21,735.55-8,677.67

Finding the Fourth Proportional to 15,750.59, 21,735.55 and 8,677.67

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Solution

The fourth proportional to 15,750.59, 21,735.55 and 8,677.67 is: 11,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.59 : 21,735.55 = 8,677.67 : x
  2. Step 2: Convert to fraction form
    15,750.59/21,735.55 = 8,677.67/x
  3. Step 3: Cross multiply
    15,750.59x = 21,735.55 × 8,677.67
  4. Step 4: Simplify right side
    15,750.59x = 188,613,930.17
  5. Step 5: Solve for x
    x = 188,613,930.17/15,750.59
  6. Step 6: Final answer
    x = 11,975.04

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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.