Home / 14,063.47-21,084.79-8,515.51

Finding the Fourth Proportional to 14,063.47, 21,084.79 and 8,515.51

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Solution

The fourth proportional to 14,063.47, 21,084.79 and 8,515.51 is: 12,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,063.47 : 21,084.79 = 8,515.51 : x
  2. Step 2: Convert to fraction form
    14,063.47/21,084.79 = 8,515.51/x
  3. Step 3: Cross multiply
    14,063.47x = 21,084.79 × 8,515.51
  4. Step 4: Simplify right side
    14,063.47x = 179,547,740.09
  5. Step 5: Solve for x
    x = 179,547,740.09/14,063.47
  6. Step 6: Final answer
    x = 12,766.96

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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.