Home / 10,943.36-15,102.72-6,964.16

Finding the Fourth Proportional to 10,943.36, 15,102.72 and 6,964.16

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Solution

The fourth proportional to 10,943.36, 15,102.72 and 6,964.16 is: 9,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.36 : 15,102.72 = 6,964.16 : x
  2. Step 2: Convert to fraction form
    10,943.36/15,102.72 = 6,964.16/x
  3. Step 3: Cross multiply
    10,943.36x = 15,102.72 × 6,964.16
  4. Step 4: Simplify right side
    10,943.36x = 105,177,758.52
  5. Step 5: Solve for x
    x = 105,177,758.52/10,943.36
  6. Step 6: Final answer
    x = 9,611.10

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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.