Home / 19,397.40-29,108.84-10,638.46

Finding the Fourth Proportional to 19,397.40, 29,108.84 and 10,638.46

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Solution

The fourth proportional to 19,397.40, 29,108.84 and 10,638.46 is: 15,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.40 : 29,108.84 = 10,638.46 : x
  2. Step 2: Convert to fraction form
    19,397.40/29,108.84 = 10,638.46/x
  3. Step 3: Cross multiply
    19,397.40x = 29,108.84 × 10,638.46
  4. Step 4: Simplify right side
    19,397.40x = 309,673,229.99
  5. Step 5: Solve for x
    x = 309,673,229.99/19,397.40
  6. Step 6: Final answer
    x = 15,964.68

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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.