Home / 18,688.14-28,039.67-7,595.70

Finding the Fourth Proportional to 18,688.14, 28,039.67 and 7,595.70

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Solution

The fourth proportional to 18,688.14, 28,039.67 and 7,595.70 is: 11,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.14 : 28,039.67 = 7,595.70 : x
  2. Step 2: Convert to fraction form
    18,688.14/28,039.67 = 7,595.70/x
  3. Step 3: Cross multiply
    18,688.14x = 28,039.67 × 7,595.70
  4. Step 4: Simplify right side
    18,688.14x = 212,980,781.22
  5. Step 5: Solve for x
    x = 212,980,781.22/18,688.14
  6. Step 6: Final answer
    x = 11,396.58

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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.