Home / 13,042.80-19,564.20-4,278.60

Finding the Fourth Proportional to 13,042.80, 19,564.20 and 4,278.60

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Solution

The fourth proportional to 13,042.80, 19,564.20 and 4,278.60 is: 6,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.80 : 19,564.20 = 4,278.60 : x
  2. Step 2: Convert to fraction form
    13,042.80/19,564.20 = 4,278.60/x
  3. Step 3: Cross multiply
    13,042.80x = 19,564.20 × 4,278.60
  4. Step 4: Simplify right side
    13,042.80x = 83,707,386.12
  5. Step 5: Solve for x
    x = 83,707,386.12/13,042.80
  6. Step 6: Final answer
    x = 6,417.90

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1.5x scale

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.