Home / 13,547.04-20,321.56-3,687.08

Finding the Fourth Proportional to 13,547.04, 20,321.56 and 3,687.08

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Solution

The fourth proportional to 13,547.04, 20,321.56 and 3,687.08 is: 5,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.04 : 20,321.56 = 3,687.08 : x
  2. Step 2: Convert to fraction form
    13,547.04/20,321.56 = 3,687.08/x
  3. Step 3: Cross multiply
    13,547.04x = 20,321.56 × 3,687.08
  4. Step 4: Simplify right side
    13,547.04x = 74,927,217.44
  5. Step 5: Solve for x
    x = 74,927,217.44/13,547.04
  6. Step 6: Final answer
    x = 5,530.89

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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.