Home / 8,534.40-12,807.36-6,231.36

Finding the Fourth Proportional to 8,534.40, 12,807.36 and 6,231.36

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Solution

The fourth proportional to 8,534.40, 12,807.36 and 6,231.36 is: 9,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,534.40 : 12,807.36 = 6,231.36 : x
  2. Step 2: Convert to fraction form
    8,534.40/12,807.36 = 6,231.36/x
  3. Step 3: Cross multiply
    8,534.40x = 12,807.36 × 6,231.36
  4. Step 4: Simplify right side
    8,534.40x = 79,807,270.81
  5. Step 5: Solve for x
    x = 79,807,270.81/8,534.40
  6. Step 6: Final answer
    x = 9,351.25

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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.