Home / 12,372.18-17,065.80-7,651.50

Finding the Fourth Proportional to 12,372.18, 17,065.80 and 7,651.50

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Solution

The fourth proportional to 12,372.18, 17,065.80 and 7,651.50 is: 10,554.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.18 : 17,065.80 = 7,651.50 : x
  2. Step 2: Convert to fraction form
    12,372.18/17,065.80 = 7,651.50/x
  3. Step 3: Cross multiply
    12,372.18x = 17,065.80 × 7,651.50
  4. Step 4: Simplify right side
    12,372.18x = 130,578,968.70
  5. Step 5: Solve for x
    x = 130,578,968.70/12,372.18
  6. Step 6: Final answer
    x = 10,554.24

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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.