Home / 15,034.09-20,746.74-8,319.32

Finding the Fourth Proportional to 15,034.09, 20,746.74 and 8,319.32

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Solution

The fourth proportional to 15,034.09, 20,746.74 and 8,319.32 is: 11,480.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,034.09 : 20,746.74 = 8,319.32 : x
  2. Step 2: Convert to fraction form
    15,034.09/20,746.74 = 8,319.32/x
  3. Step 3: Cross multiply
    15,034.09x = 20,746.74 × 8,319.32
  4. Step 4: Simplify right side
    15,034.09x = 172,598,769.02
  5. Step 5: Solve for x
    x = 172,598,769.02/15,034.09
  6. Step 6: Final answer
    x = 11,480.49

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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.