Home / 10,251.90-15,365.70-7,651.80

Finding the Fourth Proportional to 10,251.90, 15,365.70 and 7,651.80

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Solution

The fourth proportional to 10,251.90, 15,365.70 and 7,651.80 is: 11,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.90 : 15,365.70 = 7,651.80 : x
  2. Step 2: Convert to fraction form
    10,251.90/15,365.70 = 7,651.80/x
  3. Step 3: Cross multiply
    10,251.90x = 15,365.70 × 7,651.80
  4. Step 4: Simplify right side
    10,251.90x = 117,575,263.26
  5. Step 5: Solve for x
    x = 117,575,263.26/10,251.90
  6. Step 6: Final answer
    x = 11,468.63

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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.