Home / 19,300.11-28,931.67-6,143.91

Finding the Fourth Proportional to 19,300.11, 28,931.67 and 6,143.91

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Solution

The fourth proportional to 19,300.11, 28,931.67 and 6,143.91 is: 9,209.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300.11 : 28,931.67 = 6,143.91 : x
  2. Step 2: Convert to fraction form
    19,300.11/28,931.67 = 6,143.91/x
  3. Step 3: Cross multiply
    19,300.11x = 28,931.67 × 6,143.91
  4. Step 4: Simplify right side
    19,300.11x = 177,753,576.63
  5. Step 5: Solve for x
    x = 177,753,576.63/19,300.11
  6. Step 6: Final answer
    x = 9,209.98

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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.