Home / 12,896.64-19,311.36-7,041.24

Finding the Fourth Proportional to 12,896.64, 19,311.36 and 7,041.24

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Solution

The fourth proportional to 12,896.64, 19,311.36 and 7,041.24 is: 10,543.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.64 : 19,311.36 = 7,041.24 : x
  2. Step 2: Convert to fraction form
    12,896.64/19,311.36 = 7,041.24/x
  3. Step 3: Cross multiply
    12,896.64x = 19,311.36 × 7,041.24
  4. Step 4: Simplify right side
    12,896.64x = 135,975,920.49
  5. Step 5: Solve for x
    x = 135,975,920.49/12,896.64
  6. Step 6: Final answer
    x = 10,543.52

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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.