Home / 10,972.34-15,141.89-6,723.41

Finding the Fourth Proportional to 10,972.34, 15,141.89 and 6,723.41

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Solution

The fourth proportional to 10,972.34, 15,141.89 and 6,723.41 is: 9,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.34 : 15,141.89 = 6,723.41 : x
  2. Step 2: Convert to fraction form
    10,972.34/15,141.89 = 6,723.41/x
  3. Step 3: Cross multiply
    10,972.34x = 15,141.89 × 6,723.41
  4. Step 4: Simplify right side
    10,972.34x = 101,805,075.74
  5. Step 5: Solve for x
    x = 101,805,075.74/10,972.34
  6. Step 6: Final answer
    x = 9,278.34

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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.