Home / 17,878.12-24,660.51-11,513.02

Finding the Fourth Proportional to 17,878.12, 24,660.51 and 11,513.02

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Solution

The fourth proportional to 17,878.12, 24,660.51 and 11,513.02 is: 15,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.12 : 24,660.51 = 11,513.02 : x
  2. Step 2: Convert to fraction form
    17,878.12/24,660.51 = 11,513.02/x
  3. Step 3: Cross multiply
    17,878.12x = 24,660.51 × 11,513.02
  4. Step 4: Simplify right side
    17,878.12x = 283,916,944.84
  5. Step 5: Solve for x
    x = 283,916,944.84/17,878.12
  6. Step 6: Final answer
    x = 15,880.69

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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.