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Finding the Fourth Proportional to 8,880.58, 13,320.90 and 5,585.50

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Solution

The fourth proportional to 8,880.58, 13,320.90 and 5,585.50 is: 8,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.58 : 13,320.90 = 5,585.50 : x
  2. Step 2: Convert to fraction form
    8,880.58/13,320.90 = 5,585.50/x
  3. Step 3: Cross multiply
    8,880.58x = 13,320.90 × 5,585.50
  4. Step 4: Simplify right side
    8,880.58x = 74,403,886.95
  5. Step 5: Solve for x
    x = 74,403,886.95/8,880.58
  6. Step 6: Final answer
    x = 8,378.27

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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.