Home / 13,389.95-20,087.76-5,069.81

Finding the Fourth Proportional to 13,389.95, 20,087.76 and 5,069.81

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Solution

The fourth proportional to 13,389.95, 20,087.76 and 5,069.81 is: 7,605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.95 : 20,087.76 = 5,069.81 : x
  2. Step 2: Convert to fraction form
    13,389.95/20,087.76 = 5,069.81/x
  3. Step 3: Cross multiply
    13,389.95x = 20,087.76 × 5,069.81
  4. Step 4: Simplify right side
    13,389.95x = 101,841,126.53
  5. Step 5: Solve for x
    x = 101,841,126.53/13,389.95
  6. Step 6: Final answer
    x = 7,605.79

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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.