Home / 11,123.31-16,668.35-10,303.19

Finding the Fourth Proportional to 11,123.31, 16,668.35 and 10,303.19

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Solution

The fourth proportional to 11,123.31, 16,668.35 and 10,303.19 is: 15,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.31 : 16,668.35 = 10,303.19 : x
  2. Step 2: Convert to fraction form
    11,123.31/16,668.35 = 10,303.19/x
  3. Step 3: Cross multiply
    11,123.31x = 16,668.35 × 10,303.19
  4. Step 4: Simplify right side
    11,123.31x = 171,737,042.18
  5. Step 5: Solve for x
    x = 171,737,042.18/11,123.31
  6. Step 6: Final answer
    x = 15,439.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.