Home / 11,140.30-16,710.45-9,390.70

Finding the Fourth Proportional to 11,140.30, 16,710.45 and 9,390.70

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Solution

The fourth proportional to 11,140.30, 16,710.45 and 9,390.70 is: 14,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.30 : 16,710.45 = 9,390.70 : x
  2. Step 2: Convert to fraction form
    11,140.30/16,710.45 = 9,390.70/x
  3. Step 3: Cross multiply
    11,140.30x = 16,710.45 × 9,390.70
  4. Step 4: Simplify right side
    11,140.30x = 156,922,822.82
  5. Step 5: Solve for x
    x = 156,922,822.82/11,140.30
  6. Step 6: Final answer
    x = 14,086.05

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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.