Home / 15,035.22-20,746.98-8,319.78

Finding the Fourth Proportional to 15,035.22, 20,746.98 and 8,319.78

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Solution

The fourth proportional to 15,035.22, 20,746.98 and 8,319.78 is: 11,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.22 : 20,746.98 = 8,319.78 : x
  2. Step 2: Convert to fraction form
    15,035.22/20,746.98 = 8,319.78/x
  3. Step 3: Cross multiply
    15,035.22x = 20,746.98 × 8,319.78
  4. Step 4: Simplify right side
    15,035.22x = 172,610,309.26
  5. Step 5: Solve for x
    x = 172,610,309.26/15,035.22
  6. Step 6: Final answer
    x = 11,480.40

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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.