Home / 11,015.32-15,180.14-10,812.87

Finding the Fourth Proportional to 11,015.32, 15,180.14 and 10,812.87

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Solution

The fourth proportional to 11,015.32, 15,180.14 and 10,812.87 is: 14,901.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.32 : 15,180.14 = 10,812.87 : x
  2. Step 2: Convert to fraction form
    11,015.32/15,180.14 = 10,812.87/x
  3. Step 3: Cross multiply
    11,015.32x = 15,180.14 × 10,812.87
  4. Step 4: Simplify right side
    11,015.32x = 164,140,880.40
  5. Step 5: Solve for x
    x = 164,140,880.40/11,015.32
  6. Step 6: Final answer
    x = 14,901.14

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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.