Home / 19,070.90-28,614.45-9,205.10

Finding the Fourth Proportional to 19,070.90, 28,614.45 and 9,205.10

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Solution

The fourth proportional to 19,070.90, 28,614.45 and 9,205.10 is: 13,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.90 : 28,614.45 = 9,205.10 : x
  2. Step 2: Convert to fraction form
    19,070.90/28,614.45 = 9,205.10/x
  3. Step 3: Cross multiply
    19,070.90x = 28,614.45 × 9,205.10
  4. Step 4: Simplify right side
    19,070.90x = 263,398,873.70
  5. Step 5: Solve for x
    x = 263,398,873.70/19,070.90
  6. Step 6: Final answer
    x = 13,811.56

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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.