Home / 15,647.90-23,469.40-5,117.84

Finding the Fourth Proportional to 15,647.90, 23,469.40 and 5,117.84

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Solution

The fourth proportional to 15,647.90, 23,469.40 and 5,117.84 is: 7,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.90 : 23,469.40 = 5,117.84 : x
  2. Step 2: Convert to fraction form
    15,647.90/23,469.40 = 5,117.84/x
  3. Step 3: Cross multiply
    15,647.90x = 23,469.40 × 5,117.84
  4. Step 4: Simplify right side
    15,647.90x = 120,112,491.16
  5. Step 5: Solve for x
    x = 120,112,491.16/15,647.90
  6. Step 6: Final answer
    x = 7,675.95

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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.