Home / 18,120.84-25,004.88-10,565.16

Finding the Fourth Proportional to 18,120.84, 25,004.88 and 10,565.16

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Solution

The fourth proportional to 18,120.84, 25,004.88 and 10,565.16 is: 14,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.84 : 25,004.88 = 10,565.16 : x
  2. Step 2: Convert to fraction form
    18,120.84/25,004.88 = 10,565.16/x
  3. Step 3: Cross multiply
    18,120.84x = 25,004.88 × 10,565.16
  4. Step 4: Simplify right side
    18,120.84x = 264,180,557.98
  5. Step 5: Solve for x
    x = 264,180,557.98/18,120.84
  6. Step 6: Final answer
    x = 14,578.83

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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.