Home / 13,424.61-18,526.25-7,759.53

Finding the Fourth Proportional to 13,424.61, 18,526.25 and 7,759.53

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Solution

The fourth proportional to 13,424.61, 18,526.25 and 7,759.53 is: 10,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.61 : 18,526.25 = 7,759.53 : x
  2. Step 2: Convert to fraction form
    13,424.61/18,526.25 = 7,759.53/x
  3. Step 3: Cross multiply
    13,424.61x = 18,526.25 × 7,759.53
  4. Step 4: Simplify right side
    13,424.61x = 143,755,012.06
  5. Step 5: Solve for x
    x = 143,755,012.06/13,424.61
  6. Step 6: Final answer
    x = 10,708.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.