Home / 8,064.80-12,091.48-3,130.28

Finding the Fourth Proportional to 8,064.80, 12,091.48 and 3,130.28

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Solution

The fourth proportional to 8,064.80, 12,091.48 and 3,130.28 is: 4,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064.80 : 12,091.48 = 3,130.28 : x
  2. Step 2: Convert to fraction form
    8,064.80/12,091.48 = 3,130.28/x
  3. Step 3: Cross multiply
    8,064.80x = 12,091.48 × 3,130.28
  4. Step 4: Simplify right side
    8,064.80x = 37,849,718.01
  5. Step 5: Solve for x
    x = 37,849,718.01/8,064.80
  6. Step 6: Final answer
    x = 4,693.20

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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.