Home / 12,501.66-18,750-3,618.02

Finding the Fourth Proportional to 12,501.66, 18,750 and 3,618.02

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Solution

The fourth proportional to 12,501.66, 18,750 and 3,618.02 is: 5,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.66 : 18,750 = 3,618.02 : x
  2. Step 2: Convert to fraction form
    12,501.66/18,750 = 3,618.02/x
  3. Step 3: Cross multiply
    12,501.66x = 18,750 × 3,618.02
  4. Step 4: Simplify right side
    12,501.66x = 67,837,875
  5. Step 5: Solve for x
    x = 67,837,875/12,501.66
  6. Step 6: Final answer
    x = 5,426.31

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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.