Home / 13,142.48-19,701.36-6,476.40

Finding the Fourth Proportional to 13,142.48, 19,701.36 and 6,476.40

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Solution

The fourth proportional to 13,142.48, 19,701.36 and 6,476.40 is: 9,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142.48 : 19,701.36 = 6,476.40 : x
  2. Step 2: Convert to fraction form
    13,142.48/19,701.36 = 6,476.40/x
  3. Step 3: Cross multiply
    13,142.48x = 19,701.36 × 6,476.40
  4. Step 4: Simplify right side
    13,142.48x = 127,593,863.62
  5. Step 5: Solve for x
    x = 127,593,863.62/13,142.48
  6. Step 6: Final answer
    x = 9,708.51

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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.