Home / 19,674.12-29,510.10-7,988.52

Finding the Fourth Proportional to 19,674.12, 29,510.10 and 7,988.52

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Solution

The fourth proportional to 19,674.12, 29,510.10 and 7,988.52 is: 11,982.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,674.12 : 29,510.10 = 7,988.52 : x
  2. Step 2: Convert to fraction form
    19,674.12/29,510.10 = 7,988.52/x
  3. Step 3: Cross multiply
    19,674.12x = 29,510.10 × 7,988.52
  4. Step 4: Simplify right side
    19,674.12x = 235,742,024.05
  5. Step 5: Solve for x
    x = 235,742,024.05/19,674.12
  6. Step 6: Final answer
    x = 11,982.34

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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.