Home / 13,291.77-19,940.75-4,526.76

Finding the Fourth Proportional to 13,291.77, 19,940.75 and 4,526.76

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Solution

The fourth proportional to 13,291.77, 19,940.75 and 4,526.76 is: 6,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.77 : 19,940.75 = 4,526.76 : x
  2. Step 2: Convert to fraction form
    13,291.77/19,940.75 = 4,526.76/x
  3. Step 3: Cross multiply
    13,291.77x = 19,940.75 × 4,526.76
  4. Step 4: Simplify right side
    13,291.77x = 90,267,016.69
  5. Step 5: Solve for x
    x = 90,267,016.69/13,291.77
  6. Step 6: Final answer
    x = 6,791.19

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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.