Home / 18,528.80-25,569.36-10,145.28

Finding the Fourth Proportional to 18,528.80, 25,569.36 and 10,145.28

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Solution

The fourth proportional to 18,528.80, 25,569.36 and 10,145.28 is: 14,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.80 : 25,569.36 = 10,145.28 : x
  2. Step 2: Convert to fraction form
    18,528.80/25,569.36 = 10,145.28/x
  3. Step 3: Cross multiply
    18,528.80x = 25,569.36 × 10,145.28
  4. Step 4: Simplify right side
    18,528.80x = 259,408,316.62
  5. Step 5: Solve for x
    x = 259,408,316.62/18,528.80
  6. Step 6: Final answer
    x = 14,000.28

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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.