Home / 8,973.87-12,367.98-7,942.74

Finding the Fourth Proportional to 8,973.87, 12,367.98 and 7,942.74

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Solution

The fourth proportional to 8,973.87, 12,367.98 and 7,942.74 is: 10,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.87 : 12,367.98 = 7,942.74 : x
  2. Step 2: Convert to fraction form
    8,973.87/12,367.98 = 7,942.74/x
  3. Step 3: Cross multiply
    8,973.87x = 12,367.98 × 7,942.74
  4. Step 4: Simplify right side
    8,973.87x = 98,235,649.47
  5. Step 5: Solve for x
    x = 98,235,649.47/8,973.87
  6. Step 6: Final answer
    x = 10,946.85

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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.