Home / 12,293.48-18,445.80-5,721.68

Finding the Fourth Proportional to 12,293.48, 18,445.80 and 5,721.68

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Solution

The fourth proportional to 12,293.48, 18,445.80 and 5,721.68 is: 8,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.48 : 18,445.80 = 5,721.68 : x
  2. Step 2: Convert to fraction form
    12,293.48/18,445.80 = 5,721.68/x
  3. Step 3: Cross multiply
    12,293.48x = 18,445.80 × 5,721.68
  4. Step 4: Simplify right side
    12,293.48x = 105,540,964.94
  5. Step 5: Solve for x
    x = 105,540,964.94/12,293.48
  6. Step 6: Final answer
    x = 8,585.12

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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.