Home / 7,106.72-9,808.20-5,123.84

Finding the Fourth Proportional to 7,106.72, 9,808.20 and 5,123.84

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Solution

The fourth proportional to 7,106.72, 9,808.20 and 5,123.84 is: 7,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.72 : 9,808.20 = 5,123.84 : x
  2. Step 2: Convert to fraction form
    7,106.72/9,808.20 = 5,123.84/x
  3. Step 3: Cross multiply
    7,106.72x = 9,808.20 × 5,123.84
  4. Step 4: Simplify right side
    7,106.72x = 50,255,647.49
  5. Step 5: Solve for x
    x = 50,255,647.49/7,106.72
  6. Step 6: Final answer
    x = 7,071.57

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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.