Home / 12,320.56-17,000.51-6,942.77

Finding the Fourth Proportional to 12,320.56, 17,000.51 and 6,942.77

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Solution

The fourth proportional to 12,320.56, 17,000.51 and 6,942.77 is: 9,579.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.56 : 17,000.51 = 6,942.77 : x
  2. Step 2: Convert to fraction form
    12,320.56/17,000.51 = 6,942.77/x
  3. Step 3: Cross multiply
    12,320.56x = 17,000.51 × 6,942.77
  4. Step 4: Simplify right side
    12,320.56x = 118,030,630.81
  5. Step 5: Solve for x
    x = 118,030,630.81/12,320.56
  6. Step 6: Final answer
    x = 9,579.97

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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.