Home / 12,762.47-19,139.45-5,365.55

Finding the Fourth Proportional to 12,762.47, 19,139.45 and 5,365.55

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Solution

The fourth proportional to 12,762.47, 19,139.45 and 5,365.55 is: 8,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.47 : 19,139.45 = 5,365.55 : x
  2. Step 2: Convert to fraction form
    12,762.47/19,139.45 = 5,365.55/x
  3. Step 3: Cross multiply
    12,762.47x = 19,139.45 × 5,365.55
  4. Step 4: Simplify right side
    12,762.47x = 102,693,553.42
  5. Step 5: Solve for x
    x = 102,693,553.42/12,762.47
  6. Step 6: Final answer
    x = 8,046.53

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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.