Home / 7,837.56-11,712.96-6,378.48

Finding the Fourth Proportional to 7,837.56, 11,712.96 and 6,378.48

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Solution

The fourth proportional to 7,837.56, 11,712.96 and 6,378.48 is: 9,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.56 : 11,712.96 = 6,378.48 : x
  2. Step 2: Convert to fraction form
    7,837.56/11,712.96 = 6,378.48/x
  3. Step 3: Cross multiply
    7,837.56x = 11,712.96 × 6,378.48
  4. Step 4: Simplify right side
    7,837.56x = 74,710,881.10
  5. Step 5: Solve for x
    x = 74,710,881.10/7,837.56
  6. Step 6: Final answer
    x = 9,532.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.