Home / 15,669.49-21,611.67-9,704.47

Finding the Fourth Proportional to 15,669.49, 21,611.67 and 9,704.47

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Solution

The fourth proportional to 15,669.49, 21,611.67 and 9,704.47 is: 13,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.49 : 21,611.67 = 9,704.47 : x
  2. Step 2: Convert to fraction form
    15,669.49/21,611.67 = 9,704.47/x
  3. Step 3: Cross multiply
    15,669.49x = 21,611.67 × 9,704.47
  4. Step 4: Simplify right side
    15,669.49x = 209,729,803.16
  5. Step 5: Solve for x
    x = 209,729,803.16/15,669.49
  6. Step 6: Final answer
    x = 13,384.60

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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.