Home / 12,408.18-17,123.26-7,102.98

Finding the Fourth Proportional to 12,408.18, 17,123.26 and 7,102.98

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Solution

The fourth proportional to 12,408.18, 17,123.26 and 7,102.98 is: 9,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.18 : 17,123.26 = 7,102.98 : x
  2. Step 2: Convert to fraction form
    12,408.18/17,123.26 = 7,102.98/x
  3. Step 3: Cross multiply
    12,408.18x = 17,123.26 × 7,102.98
  4. Step 4: Simplify right side
    12,408.18x = 121,626,173.31
  5. Step 5: Solve for x
    x = 121,626,173.31/12,408.18
  6. Step 6: Final answer
    x = 9,802.10

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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.