Home / 8,977.24-12,388.56-4,998.40

Finding the Fourth Proportional to 8,977.24, 12,388.56 and 4,998.40

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Solution

The fourth proportional to 8,977.24, 12,388.56 and 4,998.40 is: 6,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.24 : 12,388.56 = 4,998.40 : x
  2. Step 2: Convert to fraction form
    8,977.24/12,388.56 = 4,998.40/x
  3. Step 3: Cross multiply
    8,977.24x = 12,388.56 × 4,998.40
  4. Step 4: Simplify right side
    8,977.24x = 61,922,978.30
  5. Step 5: Solve for x
    x = 61,922,978.30/8,977.24
  6. Step 6: Final answer
    x = 6,897.77

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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.