Home / 13,762.47-20,693.52-12,679.92

Finding the Fourth Proportional to 13,762.47, 20,693.52 and 12,679.92

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Solution

The fourth proportional to 13,762.47, 20,693.52 and 12,679.92 is: 19,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.47 : 20,693.52 = 12,679.92 : x
  2. Step 2: Convert to fraction form
    13,762.47/20,693.52 = 12,679.92/x
  3. Step 3: Cross multiply
    13,762.47x = 20,693.52 × 12,679.92
  4. Step 4: Simplify right side
    13,762.47x = 262,392,178.12
  5. Step 5: Solve for x
    x = 262,392,178.12/13,762.47
  6. Step 6: Final answer
    x = 19,065.78

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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.