Home / 15,088.05-20,747.66-13,095.14

Finding the Fourth Proportional to 15,088.05, 20,747.66 and 13,095.14

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Solution

The fourth proportional to 15,088.05, 20,747.66 and 13,095.14 is: 18,007.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.05 : 20,747.66 = 13,095.14 : x
  2. Step 2: Convert to fraction form
    15,088.05/20,747.66 = 13,095.14/x
  3. Step 3: Cross multiply
    15,088.05x = 20,747.66 × 13,095.14
  4. Step 4: Simplify right side
    15,088.05x = 271,693,343.16
  5. Step 5: Solve for x
    x = 271,693,343.16/15,088.05
  6. Step 6: Final answer
    x = 18,007.19

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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.