Home / 15,078.06-20,818.51-10,054.13

Finding the Fourth Proportional to 15,078.06, 20,818.51 and 10,054.13

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Solution

The fourth proportional to 15,078.06, 20,818.51 and 10,054.13 is: 13,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078.06 : 20,818.51 = 10,054.13 : x
  2. Step 2: Convert to fraction form
    15,078.06/20,818.51 = 10,054.13/x
  3. Step 3: Cross multiply
    15,078.06x = 20,818.51 × 10,054.13
  4. Step 4: Simplify right side
    15,078.06x = 209,311,876.72
  5. Step 5: Solve for x
    x = 209,311,876.72/15,078.06
  6. Step 6: Final answer
    x = 13,881.88

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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.