Home / 7,215.85-9,957.45-4,029.04

Finding the Fourth Proportional to 7,215.85, 9,957.45 and 4,029.04

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Solution

The fourth proportional to 7,215.85, 9,957.45 and 4,029.04 is: 5,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.85 : 9,957.45 = 4,029.04 : x
  2. Step 2: Convert to fraction form
    7,215.85/9,957.45 = 4,029.04/x
  3. Step 3: Cross multiply
    7,215.85x = 9,957.45 × 4,029.04
  4. Step 4: Simplify right side
    7,215.85x = 40,118,964.35
  5. Step 5: Solve for x
    x = 40,118,964.35/7,215.85
  6. Step 6: Final answer
    x = 5,559.84

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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.