Home / 11,237.40-16,856.10-9,487.80

Finding the Fourth Proportional to 11,237.40, 16,856.10 and 9,487.80

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Solution

The fourth proportional to 11,237.40, 16,856.10 and 9,487.80 is: 14,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.40 : 16,856.10 = 9,487.80 : x
  2. Step 2: Convert to fraction form
    11,237.40/16,856.10 = 9,487.80/x
  3. Step 3: Cross multiply
    11,237.40x = 16,856.10 × 9,487.80
  4. Step 4: Simplify right side
    11,237.40x = 159,927,305.58
  5. Step 5: Solve for x
    x = 159,927,305.58/11,237.40
  6. Step 6: Final answer
    x = 14,231.70

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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.