Home / 12,107.40-16,707.30-6,803.10

Finding the Fourth Proportional to 12,107.40, 16,707.30 and 6,803.10

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Solution

The fourth proportional to 12,107.40, 16,707.30 and 6,803.10 is: 9,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.40 : 16,707.30 = 6,803.10 : x
  2. Step 2: Convert to fraction form
    12,107.40/16,707.30 = 6,803.10/x
  3. Step 3: Cross multiply
    12,107.40x = 16,707.30 × 6,803.10
  4. Step 4: Simplify right side
    12,107.40x = 113,661,432.63
  5. Step 5: Solve for x
    x = 113,661,432.63/12,107.40
  6. Step 6: Final answer
    x = 9,387.77

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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.