Home / 18,528.75-25,569.81-10,145.25

Finding the Fourth Proportional to 18,528.75, 25,569.81 and 10,145.25

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Solution

The fourth proportional to 18,528.75, 25,569.81 and 10,145.25 is: 14,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.75 : 25,569.81 = 10,145.25 : x
  2. Step 2: Convert to fraction form
    18,528.75/25,569.81 = 10,145.25/x
  3. Step 3: Cross multiply
    18,528.75x = 25,569.81 × 10,145.25
  4. Step 4: Simplify right side
    18,528.75x = 259,412,114.90
  5. Step 5: Solve for x
    x = 259,412,114.90/18,528.75
  6. Step 6: Final answer
    x = 14,000.52

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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.