Home / 7,787.96-11,677.45-5,325.76

Finding the Fourth Proportional to 7,787.96, 11,677.45 and 5,325.76

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Solution

The fourth proportional to 7,787.96, 11,677.45 and 5,325.76 is: 7,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.96 : 11,677.45 = 5,325.76 : x
  2. Step 2: Convert to fraction form
    7,787.96/11,677.45 = 5,325.76/x
  3. Step 3: Cross multiply
    7,787.96x = 11,677.45 × 5,325.76
  4. Step 4: Simplify right side
    7,787.96x = 62,191,269.48
  5. Step 5: Solve for x
    x = 62,191,269.48/7,787.96
  6. Step 6: Final answer
    x = 7,985.57

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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.