Home / 11,981.52-16,536.60-9,012.24

Finding the Fourth Proportional to 11,981.52, 16,536.60 and 9,012.24

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Solution

The fourth proportional to 11,981.52, 16,536.60 and 9,012.24 is: 12,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.52 : 16,536.60 = 9,012.24 : x
  2. Step 2: Convert to fraction form
    11,981.52/16,536.60 = 9,012.24/x
  3. Step 3: Cross multiply
    11,981.52x = 16,536.60 × 9,012.24
  4. Step 4: Simplify right side
    11,981.52x = 149,031,807.98
  5. Step 5: Solve for x
    x = 149,031,807.98/11,981.52
  6. Step 6: Final answer
    x = 12,438.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.