Home / 13,547.78-20,322.70-3,687.14

Finding the Fourth Proportional to 13,547.78, 20,322.70 and 3,687.14

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Solution

The fourth proportional to 13,547.78, 20,322.70 and 3,687.14 is: 5,530.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.78 : 20,322.70 = 3,687.14 : x
  2. Step 2: Convert to fraction form
    13,547.78/20,322.70 = 3,687.14/x
  3. Step 3: Cross multiply
    13,547.78x = 20,322.70 × 3,687.14
  4. Step 4: Simplify right side
    13,547.78x = 74,932,640.08
  5. Step 5: Solve for x
    x = 74,932,640.08/13,547.78
  6. Step 6: Final answer
    x = 5,530.99

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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.