Home / 11,283.84-15,557.26-7,740.90

Finding the Fourth Proportional to 11,283.84, 15,557.26 and 7,740.90

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Solution

The fourth proportional to 11,283.84, 15,557.26 and 7,740.90 is: 10,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,283.84 : 15,557.26 = 7,740.90 : x
  2. Step 2: Convert to fraction form
    11,283.84/15,557.26 = 7,740.90/x
  3. Step 3: Cross multiply
    11,283.84x = 15,557.26 × 7,740.90
  4. Step 4: Simplify right side
    11,283.84x = 120,427,193.93
  5. Step 5: Solve for x
    x = 120,427,193.93/11,283.84
  6. Step 6: Final answer
    x = 10,672.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.