Home / 10,998.32-15,177.75-6,464.07

Finding the Fourth Proportional to 10,998.32, 15,177.75 and 6,464.07

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Solution

The fourth proportional to 10,998.32, 15,177.75 and 6,464.07 is: 8,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.32 : 15,177.75 = 6,464.07 : x
  2. Step 2: Convert to fraction form
    10,998.32/15,177.75 = 6,464.07/x
  3. Step 3: Cross multiply
    10,998.32x = 15,177.75 × 6,464.07
  4. Step 4: Simplify right side
    10,998.32x = 98,110,014.20
  5. Step 5: Solve for x
    x = 98,110,014.20/10,998.32
  6. Step 6: Final answer
    x = 8,920.46

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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.