Home / 18,210.75-25,117.74-12,844.23

Finding the Fourth Proportional to 18,210.75, 25,117.74 and 12,844.23

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Solution

The fourth proportional to 18,210.75, 25,117.74 and 12,844.23 is: 17,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.75 : 25,117.74 = 12,844.23 : x
  2. Step 2: Convert to fraction form
    18,210.75/25,117.74 = 12,844.23/x
  3. Step 3: Cross multiply
    18,210.75x = 25,117.74 × 12,844.23
  4. Step 4: Simplify right side
    18,210.75x = 322,618,029.64
  5. Step 5: Solve for x
    x = 322,618,029.64/18,210.75
  6. Step 6: Final answer
    x = 17,715.80

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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.