Home / 8,803.12-12,146.88-5,448.16

Finding the Fourth Proportional to 8,803.12, 12,146.88 and 5,448.16

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Solution

The fourth proportional to 8,803.12, 12,146.88 and 5,448.16 is: 7,517.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.12 : 12,146.88 = 5,448.16 : x
  2. Step 2: Convert to fraction form
    8,803.12/12,146.88 = 5,448.16/x
  3. Step 3: Cross multiply
    8,803.12x = 12,146.88 × 5,448.16
  4. Step 4: Simplify right side
    8,803.12x = 66,178,145.74
  5. Step 5: Solve for x
    x = 66,178,145.74/8,803.12
  6. Step 6: Final answer
    x = 7,517.58

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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.