Home / 9,301.48-12,807.96-8,040.28

Finding the Fourth Proportional to 9,301.48, 12,807.96 and 8,040.28

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Solution

The fourth proportional to 9,301.48, 12,807.96 and 8,040.28 is: 11,071.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,301.48 : 12,807.96 = 8,040.28 : x
  2. Step 2: Convert to fraction form
    9,301.48/12,807.96 = 8,040.28/x
  3. Step 3: Cross multiply
    9,301.48x = 12,807.96 × 8,040.28
  4. Step 4: Simplify right side
    9,301.48x = 102,979,584.63
  5. Step 5: Solve for x
    x = 102,979,584.63/9,301.48
  6. Step 6: Final answer
    x = 11,071.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.