Home / 15,476.67-21,309.98-12,087.38

Finding the Fourth Proportional to 15,476.67, 21,309.98 and 12,087.38

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Solution

The fourth proportional to 15,476.67, 21,309.98 and 12,087.38 is: 16,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.67 : 21,309.98 = 12,087.38 : x
  2. Step 2: Convert to fraction form
    15,476.67/21,309.98 = 12,087.38/x
  3. Step 3: Cross multiply
    15,476.67x = 21,309.98 × 12,087.38
  4. Step 4: Simplify right side
    15,476.67x = 257,581,659.07
  5. Step 5: Solve for x
    x = 257,581,659.07/15,476.67
  6. Step 6: Final answer
    x = 16,643.22

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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.