Home / 13,701.25-18,907.40-7,732.76

Finding the Fourth Proportional to 13,701.25, 18,907.40 and 7,732.76

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Solution

The fourth proportional to 13,701.25, 18,907.40 and 7,732.76 is: 10,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.25 : 18,907.40 = 7,732.76 : x
  2. Step 2: Convert to fraction form
    13,701.25/18,907.40 = 7,732.76/x
  3. Step 3: Cross multiply
    13,701.25x = 18,907.40 × 7,732.76
  4. Step 4: Simplify right side
    13,701.25x = 146,206,386.42
  5. Step 5: Solve for x
    x = 146,206,386.42/13,701.25
  6. Step 6: Final answer
    x = 10,671.03

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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.