Home / 11,387.28-15,713.25-6,670.68

Finding the Fourth Proportional to 11,387.28, 15,713.25 and 6,670.68

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Solution

The fourth proportional to 11,387.28, 15,713.25 and 6,670.68 is: 9,204.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.28 : 15,713.25 = 6,670.68 : x
  2. Step 2: Convert to fraction form
    11,387.28/15,713.25 = 6,670.68/x
  3. Step 3: Cross multiply
    11,387.28x = 15,713.25 × 6,670.68
  4. Step 4: Simplify right side
    11,387.28x = 104,818,062.51
  5. Step 5: Solve for x
    x = 104,818,062.51/11,387.28
  6. Step 6: Final answer
    x = 9,204.84

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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.