Home / 12,316.77-18,478.35-3,552.39

Finding the Fourth Proportional to 12,316.77, 18,478.35 and 3,552.39

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Solution

The fourth proportional to 12,316.77, 18,478.35 and 3,552.39 is: 5,329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.77 : 18,478.35 = 3,552.39 : x
  2. Step 2: Convert to fraction form
    12,316.77/18,478.35 = 3,552.39/x
  3. Step 3: Cross multiply
    12,316.77x = 18,478.35 × 3,552.39
  4. Step 4: Simplify right side
    12,316.77x = 65,642,305.76
  5. Step 5: Solve for x
    x = 65,642,305.76/12,316.77
  6. Step 6: Final answer
    x = 5,329.51

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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.