Home / 10,007.18-15,012.66-3,434.30

Finding the Fourth Proportional to 10,007.18, 15,012.66 and 3,434.30

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Solution

The fourth proportional to 10,007.18, 15,012.66 and 3,434.30 is: 5,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.18 : 15,012.66 = 3,434.30 : x
  2. Step 2: Convert to fraction form
    10,007.18/15,012.66 = 3,434.30/x
  3. Step 3: Cross multiply
    10,007.18x = 15,012.66 × 3,434.30
  4. Step 4: Simplify right side
    10,007.18x = 51,557,978.24
  5. Step 5: Solve for x
    x = 51,557,978.24/10,007.18
  6. Step 6: Final answer
    x = 5,152.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.