Home / 13,557.42-18,706.59-8,518.73

Finding the Fourth Proportional to 13,557.42, 18,706.59 and 8,518.73

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Solution

The fourth proportional to 13,557.42, 18,706.59 and 8,518.73 is: 11,754.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.42 : 18,706.59 = 8,518.73 : x
  2. Step 2: Convert to fraction form
    13,557.42/18,706.59 = 8,518.73/x
  3. Step 3: Cross multiply
    13,557.42x = 18,706.59 × 8,518.73
  4. Step 4: Simplify right side
    13,557.42x = 159,356,295.90
  5. Step 5: Solve for x
    x = 159,356,295.90/13,557.42
  6. Step 6: Final answer
    x = 11,754.18

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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.