Home / 15,845.06-23,771.15-5,315.64

Finding the Fourth Proportional to 15,845.06, 23,771.15 and 5,315.64

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Solution

The fourth proportional to 15,845.06, 23,771.15 and 5,315.64 is: 7,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.06 : 23,771.15 = 5,315.64 : x
  2. Step 2: Convert to fraction form
    15,845.06/23,771.15 = 5,315.64/x
  3. Step 3: Cross multiply
    15,845.06x = 23,771.15 × 5,315.64
  4. Step 4: Simplify right side
    15,845.06x = 126,358,875.79
  5. Step 5: Solve for x
    x = 126,358,875.79/15,845.06
  6. Step 6: Final answer
    x = 7,974.65

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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.