Home / 10,428.40-14,393.46-6,891.94

Finding the Fourth Proportional to 10,428.40, 14,393.46 and 6,891.94

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Solution

The fourth proportional to 10,428.40, 14,393.46 and 6,891.94 is: 9,512.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.40 : 14,393.46 = 6,891.94 : x
  2. Step 2: Convert to fraction form
    10,428.40/14,393.46 = 6,891.94/x
  3. Step 3: Cross multiply
    10,428.40x = 14,393.46 × 6,891.94
  4. Step 4: Simplify right side
    10,428.40x = 99,198,862.71
  5. Step 5: Solve for x
    x = 99,198,862.71/10,428.40
  6. Step 6: Final answer
    x = 9,512.38

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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.