Home / 18,766.08-28,142.64-7,069.68

Finding the Fourth Proportional to 18,766.08, 28,142.64 and 7,069.68

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Solution

The fourth proportional to 18,766.08, 28,142.64 and 7,069.68 is: 10,602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.08 : 28,142.64 = 7,069.68 : x
  2. Step 2: Convert to fraction form
    18,766.08/28,142.64 = 7,069.68/x
  3. Step 3: Cross multiply
    18,766.08x = 28,142.64 × 7,069.68
  4. Step 4: Simplify right side
    18,766.08x = 198,959,459.16
  5. Step 5: Solve for x
    x = 198,959,459.16/18,766.08
  6. Step 6: Final answer
    x = 10,602.08

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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.