Home / 10,402.19-15,611.37-7,261.80

Finding the Fourth Proportional to 10,402.19, 15,611.37 and 7,261.80

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Solution

The fourth proportional to 10,402.19, 15,611.37 and 7,261.80 is: 10,898.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402.19 : 15,611.37 = 7,261.80 : x
  2. Step 2: Convert to fraction form
    10,402.19/15,611.37 = 7,261.80/x
  3. Step 3: Cross multiply
    10,402.19x = 15,611.37 × 7,261.80
  4. Step 4: Simplify right side
    10,402.19x = 113,366,560.89
  5. Step 5: Solve for x
    x = 113,366,560.89/10,402.19
  6. Step 6: Final answer
    x = 10,898.34

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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.