Home / 11,715.95-16,156.49-10,743.51

Finding the Fourth Proportional to 11,715.95, 16,156.49 and 10,743.51

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Solution

The fourth proportional to 11,715.95, 16,156.49 and 10,743.51 is: 14,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.95 : 16,156.49 = 10,743.51 : x
  2. Step 2: Convert to fraction form
    11,715.95/16,156.49 = 10,743.51/x
  3. Step 3: Cross multiply
    11,715.95x = 16,156.49 × 10,743.51
  4. Step 4: Simplify right side
    11,715.95x = 173,577,411.88
  5. Step 5: Solve for x
    x = 173,577,411.88/11,715.95
  6. Step 6: Final answer
    x = 14,815.48

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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.