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Finding the Fourth Proportional to 13,063.49, 18,030.49 and 8,587.65

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Solution

The fourth proportional to 13,063.49, 18,030.49 and 8,587.65 is: 11,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.49 : 18,030.49 = 8,587.65 : x
  2. Step 2: Convert to fraction form
    13,063.49/18,030.49 = 8,587.65/x
  3. Step 3: Cross multiply
    13,063.49x = 18,030.49 × 8,587.65
  4. Step 4: Simplify right side
    13,063.49x = 154,839,515.98
  5. Step 5: Solve for x
    x = 154,839,515.98/13,063.49
  6. Step 6: Final answer
    x = 11,852.85

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Double scale
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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.