Home / 15,023.07-20,730.65-8,308.71

Finding the Fourth Proportional to 15,023.07, 20,730.65 and 8,308.71

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Solution

The fourth proportional to 15,023.07, 20,730.65 and 8,308.71 is: 11,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.07 : 20,730.65 = 8,308.71 : x
  2. Step 2: Convert to fraction form
    15,023.07/20,730.65 = 8,308.71/x
  3. Step 3: Cross multiply
    15,023.07x = 20,730.65 × 8,308.71
  4. Step 4: Simplify right side
    15,023.07x = 172,244,917.42
  5. Step 5: Solve for x
    x = 172,244,917.42/15,023.07
  6. Step 6: Final answer
    x = 11,465.36

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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.