Home / 8,555.20-11,802.56-6,322.40

Finding the Fourth Proportional to 8,555.20, 11,802.56 and 6,322.40

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Solution

The fourth proportional to 8,555.20, 11,802.56 and 6,322.40 is: 8,722.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.20 : 11,802.56 = 6,322.40 : x
  2. Step 2: Convert to fraction form
    8,555.20/11,802.56 = 6,322.40/x
  3. Step 3: Cross multiply
    8,555.20x = 11,802.56 × 6,322.40
  4. Step 4: Simplify right side
    8,555.20x = 74,620,505.34
  5. Step 5: Solve for x
    x = 74,620,505.34/8,555.20
  6. Step 6: Final answer
    x = 8,722.24

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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.