Home / 10,518.24-15,777.36-6,612.96

Finding the Fourth Proportional to 10,518.24, 15,777.36 and 6,612.96

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Solution

The fourth proportional to 10,518.24, 15,777.36 and 6,612.96 is: 9,919.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.24 : 15,777.36 = 6,612.96 : x
  2. Step 2: Convert to fraction form
    10,518.24/15,777.36 = 6,612.96/x
  3. Step 3: Cross multiply
    10,518.24x = 15,777.36 × 6,612.96
  4. Step 4: Simplify right side
    10,518.24x = 104,335,050.59
  5. Step 5: Solve for x
    x = 104,335,050.59/10,518.24
  6. Step 6: Final answer
    x = 9,919.44

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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.