Home / 12,161.05-18,248.86-4,370.47

Finding the Fourth Proportional to 12,161.05, 18,248.86 and 4,370.47

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Solution

The fourth proportional to 12,161.05, 18,248.86 and 4,370.47 is: 6,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.05 : 18,248.86 = 4,370.47 : x
  2. Step 2: Convert to fraction form
    12,161.05/18,248.86 = 4,370.47/x
  3. Step 3: Cross multiply
    12,161.05x = 18,248.86 × 4,370.47
  4. Step 4: Simplify right side
    12,161.05x = 79,756,095.16
  5. Step 5: Solve for x
    x = 79,756,095.16/12,161.05
  6. Step 6: Final answer
    x = 6,558.32

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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.