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Finding the Fourth Proportional to 10,611, 15,804.42 and 10,055.88

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Solution

The fourth proportional to 10,611, 15,804.42 and 10,055.88 is: 14,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611 : 15,804.42 = 10,055.88 : x
  2. Step 2: Convert to fraction form
    10,611/15,804.42 = 10,055.88/x
  3. Step 3: Cross multiply
    10,611x = 15,804.42 × 10,055.88
  4. Step 4: Simplify right side
    10,611x = 158,927,350.99
  5. Step 5: Solve for x
    x = 158,927,350.99/10,611
  6. Step 6: Final answer
    x = 14,977.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.