Home / 11,907.18-16,424.64-9,385.38

Finding the Fourth Proportional to 11,907.18, 16,424.64 and 9,385.38

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Solution

The fourth proportional to 11,907.18, 16,424.64 and 9,385.38 is: 12,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.18 : 16,424.64 = 9,385.38 : x
  2. Step 2: Convert to fraction form
    11,907.18/16,424.64 = 9,385.38/x
  3. Step 3: Cross multiply
    11,907.18x = 16,424.64 × 9,385.38
  4. Step 4: Simplify right side
    11,907.18x = 154,151,487.76
  5. Step 5: Solve for x
    x = 154,151,487.76/11,907.18
  6. Step 6: Final answer
    x = 12,946.10

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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.