Home / 12,011.16-18,001.06-8,690.59

Finding the Fourth Proportional to 12,011.16, 18,001.06 and 8,690.59

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Solution

The fourth proportional to 12,011.16, 18,001.06 and 8,690.59 is: 13,024.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.16 : 18,001.06 = 8,690.59 : x
  2. Step 2: Convert to fraction form
    12,011.16/18,001.06 = 8,690.59/x
  3. Step 3: Cross multiply
    12,011.16x = 18,001.06 × 8,690.59
  4. Step 4: Simplify right side
    12,011.16x = 156,439,857.24
  5. Step 5: Solve for x
    x = 156,439,857.24/12,011.16
  6. Step 6: Final answer
    x = 13,024.54

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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.