Home / 11,703.72-16,155.30-6,988.04

Finding the Fourth Proportional to 11,703.72, 16,155.30 and 6,988.04

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Solution

The fourth proportional to 11,703.72, 16,155.30 and 6,988.04 is: 9,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,703.72 : 16,155.30 = 6,988.04 : x
  2. Step 2: Convert to fraction form
    11,703.72/16,155.30 = 6,988.04/x
  3. Step 3: Cross multiply
    11,703.72x = 16,155.30 × 6,988.04
  4. Step 4: Simplify right side
    11,703.72x = 112,893,882.61
  5. Step 5: Solve for x
    x = 112,893,882.61/11,703.72
  6. Step 6: Final answer
    x = 9,645.98

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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.