Home / 18,829.87-25,984.10-10,764.40

Finding the Fourth Proportional to 18,829.87, 25,984.10 and 10,764.40

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Solution

The fourth proportional to 18,829.87, 25,984.10 and 10,764.40 is: 14,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.87 : 25,984.10 = 10,764.40 : x
  2. Step 2: Convert to fraction form
    18,829.87/25,984.10 = 10,764.40/x
  3. Step 3: Cross multiply
    18,829.87x = 25,984.10 × 10,764.40
  4. Step 4: Simplify right side
    18,829.87x = 279,703,207.99
  5. Step 5: Solve for x
    x = 279,703,207.99/18,829.87
  6. Step 6: Final answer
    x = 14,854.23

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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.