Home / 10,955.84-15,118.92-6,240.11

Finding the Fourth Proportional to 10,955.84, 15,118.92 and 6,240.11

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Solution

The fourth proportional to 10,955.84, 15,118.92 and 6,240.11 is: 8,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.84 : 15,118.92 = 6,240.11 : x
  2. Step 2: Convert to fraction form
    10,955.84/15,118.92 = 6,240.11/x
  3. Step 3: Cross multiply
    10,955.84x = 15,118.92 × 6,240.11
  4. Step 4: Simplify right side
    10,955.84x = 94,343,648.29
  5. Step 5: Solve for x
    x = 94,343,648.29/10,955.84
  6. Step 6: Final answer
    x = 8,611.27

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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.