Home / 10,891.43-15,030.30-6,112.43

Finding the Fourth Proportional to 10,891.43, 15,030.30 and 6,112.43

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Solution

The fourth proportional to 10,891.43, 15,030.30 and 6,112.43 is: 8,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.43 : 15,030.30 = 6,112.43 : x
  2. Step 2: Convert to fraction form
    10,891.43/15,030.30 = 6,112.43/x
  3. Step 3: Cross multiply
    10,891.43x = 15,030.30 × 6,112.43
  4. Step 4: Simplify right side
    10,891.43x = 91,871,656.63
  5. Step 5: Solve for x
    x = 91,871,656.63/10,891.43
  6. Step 6: Final answer
    x = 8,435.22

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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.