Home / 12,240.20-16,890.32-6,935

Finding the Fourth Proportional to 12,240.20, 16,890.32 and 6,935

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Solution

The fourth proportional to 12,240.20, 16,890.32 and 6,935 is: 9,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.20 : 16,890.32 = 6,935 : x
  2. Step 2: Convert to fraction form
    12,240.20/16,890.32 = 6,935/x
  3. Step 3: Cross multiply
    12,240.20x = 16,890.32 × 6,935
  4. Step 4: Simplify right side
    12,240.20x = 117,134,334.53
  5. Step 5: Solve for x
    x = 117,134,334.53/12,240.20
  6. Step 6: Final answer
    x = 9,569.64

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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.