Home / 13,001.01-19,489.21-8,006.45

Finding the Fourth Proportional to 13,001.01, 19,489.21 and 8,006.45

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Solution

The fourth proportional to 13,001.01, 19,489.21 and 8,006.45 is: 12,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001.01 : 19,489.21 = 8,006.45 : x
  2. Step 2: Convert to fraction form
    13,001.01/19,489.21 = 8,006.45/x
  3. Step 3: Cross multiply
    13,001.01x = 19,489.21 × 8,006.45
  4. Step 4: Simplify right side
    13,001.01x = 156,039,385.40
  5. Step 5: Solve for x
    x = 156,039,385.40/13,001.01
  6. Step 6: Final answer
    x = 12,002.10

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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.