Home / 8,821.64-12,174.12-5,045.36

Finding the Fourth Proportional to 8,821.64, 12,174.12 and 5,045.36

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Solution

The fourth proportional to 8,821.64, 12,174.12 and 5,045.36 is: 6,962.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.64 : 12,174.12 = 5,045.36 : x
  2. Step 2: Convert to fraction form
    8,821.64/12,174.12 = 5,045.36/x
  3. Step 3: Cross multiply
    8,821.64x = 12,174.12 × 5,045.36
  4. Step 4: Simplify right side
    8,821.64x = 61,422,818.08
  5. Step 5: Solve for x
    x = 61,422,818.08/8,821.64
  6. Step 6: Final answer
    x = 6,962.74

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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.