Home / 12,898.20-19,391.04-10,298.91

Finding the Fourth Proportional to 12,898.20, 19,391.04 and 10,298.91

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Solution

The fourth proportional to 12,898.20, 19,391.04 and 10,298.91 is: 15,483.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.20 : 19,391.04 = 10,298.91 : x
  2. Step 2: Convert to fraction form
    12,898.20/19,391.04 = 10,298.91/x
  3. Step 3: Cross multiply
    12,898.20x = 19,391.04 × 10,298.91
  4. Step 4: Simplify right side
    12,898.20x = 199,706,575.77
  5. Step 5: Solve for x
    x = 199,706,575.77/12,898.20
  6. Step 6: Final answer
    x = 15,483.29

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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.