Home / 10,904.20-15,054.78-6,714.88

Finding the Fourth Proportional to 10,904.20, 15,054.78 and 6,714.88

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Solution

The fourth proportional to 10,904.20, 15,054.78 and 6,714.88 is: 9,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.20 : 15,054.78 = 6,714.88 : x
  2. Step 2: Convert to fraction form
    10,904.20/15,054.78 = 6,714.88/x
  3. Step 3: Cross multiply
    10,904.20x = 15,054.78 × 6,714.88
  4. Step 4: Simplify right side
    10,904.20x = 101,091,041.13
  5. Step 5: Solve for x
    x = 101,091,041.13/10,904.20
  6. Step 6: Final answer
    x = 9,270.84

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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.