Home / 8,995.36-13,505.64-6,215.28

Finding the Fourth Proportional to 8,995.36, 13,505.64 and 6,215.28

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Solution

The fourth proportional to 8,995.36, 13,505.64 and 6,215.28 is: 9,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.36 : 13,505.64 = 6,215.28 : x
  2. Step 2: Convert to fraction form
    8,995.36/13,505.64 = 6,215.28/x
  3. Step 3: Cross multiply
    8,995.36x = 13,505.64 × 6,215.28
  4. Step 4: Simplify right side
    8,995.36x = 83,941,334.18
  5. Step 5: Solve for x
    x = 83,941,334.18/8,995.36
  6. Step 6: Final answer
    x = 9,331.63

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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.