Home / 12,099.04-16,695.16-6,721.45

Finding the Fourth Proportional to 12,099.04, 16,695.16 and 6,721.45

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Solution

The fourth proportional to 12,099.04, 16,695.16 and 6,721.45 is: 9,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.04 : 16,695.16 = 6,721.45 : x
  2. Step 2: Convert to fraction form
    12,099.04/16,695.16 = 6,721.45/x
  3. Step 3: Cross multiply
    12,099.04x = 16,695.16 × 6,721.45
  4. Step 4: Simplify right side
    12,099.04x = 112,215,662.45
  5. Step 5: Solve for x
    x = 112,215,662.45/12,099.04
  6. Step 6: Final answer
    x = 9,274.76

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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.