Home / 10,011.87-15,018.54-2,991.33

Finding the Fourth Proportional to 10,011.87, 15,018.54 and 2,991.33

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Solution

The fourth proportional to 10,011.87, 15,018.54 and 2,991.33 is: 4,487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.87 : 15,018.54 = 2,991.33 : x
  2. Step 2: Convert to fraction form
    10,011.87/15,018.54 = 2,991.33/x
  3. Step 3: Cross multiply
    10,011.87x = 15,018.54 × 2,991.33
  4. Step 4: Simplify right side
    10,011.87x = 44,925,409.26
  5. Step 5: Solve for x
    x = 44,925,409.26/10,011.87
  6. Step 6: Final answer
    x = 4,487.21

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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.