Home / 16,820.52-23,208.84-11,513.40

Finding the Fourth Proportional to 16,820.52, 23,208.84 and 11,513.40

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Solution

The fourth proportional to 16,820.52, 23,208.84 and 11,513.40 is: 15,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.52 : 23,208.84 = 11,513.40 : x
  2. Step 2: Convert to fraction form
    16,820.52/23,208.84 = 11,513.40/x
  3. Step 3: Cross multiply
    16,820.52x = 23,208.84 × 11,513.40
  4. Step 4: Simplify right side
    16,820.52x = 267,212,658.46
  5. Step 5: Solve for x
    x = 267,212,658.46/16,820.52
  6. Step 6: Final answer
    x = 15,886.11

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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.