Home / 10,602.36-15,904.80-2,811.24

Finding the Fourth Proportional to 10,602.36, 15,904.80 and 2,811.24

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Solution

The fourth proportional to 10,602.36, 15,904.80 and 2,811.24 is: 4,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602.36 : 15,904.80 = 2,811.24 : x
  2. Step 2: Convert to fraction form
    10,602.36/15,904.80 = 2,811.24/x
  3. Step 3: Cross multiply
    10,602.36x = 15,904.80 × 2,811.24
  4. Step 4: Simplify right side
    10,602.36x = 44,712,209.95
  5. Step 5: Solve for x
    x = 44,712,209.95/10,602.36
  6. Step 6: Final answer
    x = 4,217.19

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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.