Home / 19,487.76-26,895.72-10,991.62

Finding the Fourth Proportional to 19,487.76, 26,895.72 and 10,991.62

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Solution

The fourth proportional to 19,487.76, 26,895.72 and 10,991.62 is: 15,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.76 : 26,895.72 = 10,991.62 : x
  2. Step 2: Convert to fraction form
    19,487.76/26,895.72 = 10,991.62/x
  3. Step 3: Cross multiply
    19,487.76x = 26,895.72 × 10,991.62
  4. Step 4: Simplify right side
    19,487.76x = 295,627,533.87
  5. Step 5: Solve for x
    x = 295,627,533.87/19,487.76
  6. Step 6: Final answer
    x = 15,169.91

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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.