Home / 12,113.96-18,159.93-4,320.95

Finding the Fourth Proportional to 12,113.96, 18,159.93 and 4,320.95

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Solution

The fourth proportional to 12,113.96, 18,159.93 and 4,320.95 is: 6,477.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.96 : 18,159.93 = 4,320.95 : x
  2. Step 2: Convert to fraction form
    12,113.96/18,159.93 = 4,320.95/x
  3. Step 3: Cross multiply
    12,113.96x = 18,159.93 × 4,320.95
  4. Step 4: Simplify right side
    12,113.96x = 78,468,058.73
  5. Step 5: Solve for x
    x = 78,468,058.73/12,113.96
  6. Step 6: Final answer
    x = 6,477.49

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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.