Home / 18,639.12-25,722.48-10,256.16

Finding the Fourth Proportional to 18,639.12, 25,722.48 and 10,256.16

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Solution

The fourth proportional to 18,639.12, 25,722.48 and 10,256.16 is: 14,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.12 : 25,722.48 = 10,256.16 : x
  2. Step 2: Convert to fraction form
    18,639.12/25,722.48 = 10,256.16/x
  3. Step 3: Cross multiply
    18,639.12x = 25,722.48 × 10,256.16
  4. Step 4: Simplify right side
    18,639.12x = 263,813,870.48
  5. Step 5: Solve for x
    x = 263,813,870.48/18,639.12
  6. Step 6: Final answer
    x = 14,153.77

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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.