Home / 13,547.90-20,317.73-3,685.88

Finding the Fourth Proportional to 13,547.90, 20,317.73 and 3,685.88

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Solution

The fourth proportional to 13,547.90, 20,317.73 and 3,685.88 is: 5,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.90 : 20,317.73 = 3,685.88 : x
  2. Step 2: Convert to fraction form
    13,547.90/20,317.73 = 3,685.88/x
  3. Step 3: Cross multiply
    13,547.90x = 20,317.73 × 3,685.88
  4. Step 4: Simplify right side
    13,547.90x = 74,888,747.02
  5. Step 5: Solve for x
    x = 74,888,747.02/13,547.90
  6. Step 6: Final answer
    x = 5,527.70

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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.