Home / 11,228.65-15,501.15-8,705.09

Finding the Fourth Proportional to 11,228.65, 15,501.15 and 8,705.09

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Solution

The fourth proportional to 11,228.65, 15,501.15 and 8,705.09 is: 12,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.65 : 15,501.15 = 8,705.09 : x
  2. Step 2: Convert to fraction form
    11,228.65/15,501.15 = 8,705.09/x
  3. Step 3: Cross multiply
    11,228.65x = 15,501.15 × 8,705.09
  4. Step 4: Simplify right side
    11,228.65x = 134,938,944.61
  5. Step 5: Solve for x
    x = 134,938,944.61/11,228.65
  6. Step 6: Final answer
    x = 12,017.38

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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.