Home / 19,711.80-29,556.90-6,557.40

Finding the Fourth Proportional to 19,711.80, 29,556.90 and 6,557.40

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Solution

The fourth proportional to 19,711.80, 29,556.90 and 6,557.40 is: 9,832.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.80 : 29,556.90 = 6,557.40 : x
  2. Step 2: Convert to fraction form
    19,711.80/29,556.90 = 6,557.40/x
  3. Step 3: Cross multiply
    19,711.80x = 29,556.90 × 6,557.40
  4. Step 4: Simplify right side
    19,711.80x = 193,816,416.06
  5. Step 5: Solve for x
    x = 193,816,416.06/19,711.80
  6. Step 6: Final answer
    x = 9,832.51

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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.