Home / 9,210.80-13,815.86-5,488.35

Finding the Fourth Proportional to 9,210.80, 13,815.86 and 5,488.35

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Solution

The fourth proportional to 9,210.80, 13,815.86 and 5,488.35 is: 8,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.80 : 13,815.86 = 5,488.35 : x
  2. Step 2: Convert to fraction form
    9,210.80/13,815.86 = 5,488.35/x
  3. Step 3: Cross multiply
    9,210.80x = 13,815.86 × 5,488.35
  4. Step 4: Simplify right side
    9,210.80x = 75,826,247.79
  5. Step 5: Solve for x
    x = 75,826,247.79/9,210.80
  6. Step 6: Final answer
    x = 8,232.32

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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.