Home / 12,157.19-18,228.49-4,752.83

Finding the Fourth Proportional to 12,157.19, 18,228.49 and 4,752.83

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Solution

The fourth proportional to 12,157.19, 18,228.49 and 4,752.83 is: 7,126.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.19 : 18,228.49 = 4,752.83 : x
  2. Step 2: Convert to fraction form
    12,157.19/18,228.49 = 4,752.83/x
  3. Step 3: Cross multiply
    12,157.19x = 18,228.49 × 4,752.83
  4. Step 4: Simplify right side
    12,157.19x = 86,636,947.82
  5. Step 5: Solve for x
    x = 86,636,947.82/12,157.19
  6. Step 6: Final answer
    x = 7,126.39

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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.