Home / 13,869.04-20,785.56-10,570

Finding the Fourth Proportional to 13,869.04, 20,785.56 and 10,570

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Solution

The fourth proportional to 13,869.04, 20,785.56 and 10,570 is: 15,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.04 : 20,785.56 = 10,570 : x
  2. Step 2: Convert to fraction form
    13,869.04/20,785.56 = 10,570/x
  3. Step 3: Cross multiply
    13,869.04x = 20,785.56 × 10,570
  4. Step 4: Simplify right side
    13,869.04x = 219,703,369.20
  5. Step 5: Solve for x
    x = 219,703,369.20/13,869.04
  6. Step 6: Final answer
    x = 15,841.28

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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.