Home / 8,977.18-12,388.71-4,998.70

Finding the Fourth Proportional to 8,977.18, 12,388.71 and 4,998.70

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Solution

The fourth proportional to 8,977.18, 12,388.71 and 4,998.70 is: 6,898.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.18 : 12,388.71 = 4,998.70 : x
  2. Step 2: Convert to fraction form
    8,977.18/12,388.71 = 4,998.70/x
  3. Step 3: Cross multiply
    8,977.18x = 12,388.71 × 4,998.70
  4. Step 4: Simplify right side
    8,977.18x = 61,927,444.68
  5. Step 5: Solve for x
    x = 61,927,444.68/8,977.18
  6. Step 6: Final answer
    x = 6,898.32

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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.