Home / 10,998.40-15,177.64-6,282.60

Finding the Fourth Proportional to 10,998.40, 15,177.64 and 6,282.60

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Solution

The fourth proportional to 10,998.40, 15,177.64 and 6,282.60 is: 8,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.40 : 15,177.64 = 6,282.60 : x
  2. Step 2: Convert to fraction form
    10,998.40/15,177.64 = 6,282.60/x
  3. Step 3: Cross multiply
    10,998.40x = 15,177.64 × 6,282.60
  4. Step 4: Simplify right side
    10,998.40x = 95,355,041.06
  5. Step 5: Solve for x
    x = 95,355,041.06/10,998.40
  6. Step 6: Final answer
    x = 8,669.90

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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.