Home / 19,620.60-27,082.62-12,547.05

Finding the Fourth Proportional to 19,620.60, 27,082.62 and 12,547.05

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Solution

The fourth proportional to 19,620.60, 27,082.62 and 12,547.05 is: 17,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.60 : 27,082.62 = 12,547.05 : x
  2. Step 2: Convert to fraction form
    19,620.60/27,082.62 = 12,547.05/x
  3. Step 3: Cross multiply
    19,620.60x = 27,082.62 × 12,547.05
  4. Step 4: Simplify right side
    19,620.60x = 339,806,987.27
  5. Step 5: Solve for x
    x = 339,806,987.27/19,620.60
  6. Step 6: Final answer
    x = 17,318.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.