Home / 13,277.80-19,911.04-4,508.76

Finding the Fourth Proportional to 13,277.80, 19,911.04 and 4,508.76

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Solution

The fourth proportional to 13,277.80, 19,911.04 and 4,508.76 is: 6,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.80 : 19,911.04 = 4,508.76 : x
  2. Step 2: Convert to fraction form
    13,277.80/19,911.04 = 4,508.76/x
  3. Step 3: Cross multiply
    13,277.80x = 19,911.04 × 4,508.76
  4. Step 4: Simplify right side
    13,277.80x = 89,774,100.71
  5. Step 5: Solve for x
    x = 89,774,100.71/13,277.80
  6. Step 6: Final answer
    x = 6,761.22

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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.