Home / 6,660.28-10,001.56-6,395.40

Finding the Fourth Proportional to 6,660.28, 10,001.56 and 6,395.40

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Solution

The fourth proportional to 6,660.28, 10,001.56 and 6,395.40 is: 9,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.28 : 10,001.56 = 6,395.40 : x
  2. Step 2: Convert to fraction form
    6,660.28/10,001.56 = 6,395.40/x
  3. Step 3: Cross multiply
    6,660.28x = 10,001.56 × 6,395.40
  4. Step 4: Simplify right side
    6,660.28x = 63,963,976.82
  5. Step 5: Solve for x
    x = 63,963,976.82/6,660.28
  6. Step 6: Final answer
    x = 9,603.80

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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.