Home / 13,618.59-20,428.66-4,853.51

Finding the Fourth Proportional to 13,618.59, 20,428.66 and 4,853.51

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Solution

The fourth proportional to 13,618.59, 20,428.66 and 4,853.51 is: 7,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.59 : 20,428.66 = 4,853.51 : x
  2. Step 2: Convert to fraction form
    13,618.59/20,428.66 = 4,853.51/x
  3. Step 3: Cross multiply
    13,618.59x = 20,428.66 × 4,853.51
  4. Step 4: Simplify right side
    13,618.59x = 99,150,579.19
  5. Step 5: Solve for x
    x = 99,150,579.19/13,618.59
  6. Step 6: Final answer
    x = 7,280.53

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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.