Home / 8,977.29-12,388.34-4,998.32

Finding the Fourth Proportional to 8,977.29, 12,388.34 and 4,998.32

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Solution

The fourth proportional to 8,977.29, 12,388.34 and 4,998.32 is: 6,897.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.29 : 12,388.34 = 4,998.32 : x
  2. Step 2: Convert to fraction form
    8,977.29/12,388.34 = 4,998.32/x
  3. Step 3: Cross multiply
    8,977.29x = 12,388.34 × 4,998.32
  4. Step 4: Simplify right side
    8,977.29x = 61,920,800.66
  5. Step 5: Solve for x
    x = 61,920,800.66/8,977.29
  6. Step 6: Final answer
    x = 6,897.49

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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.