Home / 13,488.76-20,220.72-9,107.74

Finding the Fourth Proportional to 13,488.76, 20,220.72 and 9,107.74

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Solution

The fourth proportional to 13,488.76, 20,220.72 and 9,107.74 is: 13,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.76 : 20,220.72 = 9,107.74 : x
  2. Step 2: Convert to fraction form
    13,488.76/20,220.72 = 9,107.74/x
  3. Step 3: Cross multiply
    13,488.76x = 20,220.72 × 9,107.74
  4. Step 4: Simplify right side
    13,488.76x = 184,165,060.37
  5. Step 5: Solve for x
    x = 184,165,060.37/13,488.76
  6. Step 6: Final answer
    x = 13,653.22

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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.