Home / 12,707.12-19,043.40-9,432.56

Finding the Fourth Proportional to 12,707.12, 19,043.40 and 9,432.56

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Solution

The fourth proportional to 12,707.12, 19,043.40 and 9,432.56 is: 14,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.12 : 19,043.40 = 9,432.56 : x
  2. Step 2: Convert to fraction form
    12,707.12/19,043.40 = 9,432.56/x
  3. Step 3: Cross multiply
    12,707.12x = 19,043.40 × 9,432.56
  4. Step 4: Simplify right side
    12,707.12x = 179,628,013.10
  5. Step 5: Solve for x
    x = 179,628,013.10/12,707.12
  6. Step 6: Final answer
    x = 14,136.01

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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.