Home / 15,654.80-21,611.94-10,645.76

Finding the Fourth Proportional to 15,654.80, 21,611.94 and 10,645.76

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Solution

The fourth proportional to 15,654.80, 21,611.94 and 10,645.76 is: 14,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.80 : 21,611.94 = 10,645.76 : x
  2. Step 2: Convert to fraction form
    15,654.80/21,611.94 = 10,645.76/x
  3. Step 3: Cross multiply
    15,654.80x = 21,611.94 × 10,645.76
  4. Step 4: Simplify right side
    15,654.80x = 230,075,526.37
  5. Step 5: Solve for x
    x = 230,075,526.37/15,654.80
  6. Step 6: Final answer
    x = 14,696.80

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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.