Home / 12,661.44-18,989.28-4,866.24

Finding the Fourth Proportional to 12,661.44, 18,989.28 and 4,866.24

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Solution

The fourth proportional to 12,661.44, 18,989.28 and 4,866.24 is: 7,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661.44 : 18,989.28 = 4,866.24 : x
  2. Step 2: Convert to fraction form
    12,661.44/18,989.28 = 4,866.24/x
  3. Step 3: Cross multiply
    12,661.44x = 18,989.28 × 4,866.24
  4. Step 4: Simplify right side
    12,661.44x = 92,406,393.91
  5. Step 5: Solve for x
    x = 92,406,393.91/12,661.44
  6. Step 6: Final answer
    x = 7,298.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.