Home / 11,875.80-16,392.30-7,396.90

Finding the Fourth Proportional to 11,875.80, 16,392.30 and 7,396.90

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Solution

The fourth proportional to 11,875.80, 16,392.30 and 7,396.90 is: 10,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.80 : 16,392.30 = 7,396.90 : x
  2. Step 2: Convert to fraction form
    11,875.80/16,392.30 = 7,396.90/x
  3. Step 3: Cross multiply
    11,875.80x = 16,392.30 × 7,396.90
  4. Step 4: Simplify right side
    11,875.80x = 121,252,203.87
  5. Step 5: Solve for x
    x = 121,252,203.87/11,875.80
  6. Step 6: Final answer
    x = 10,210.02

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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.