Home / 12,436.47-18,655.20-4,941.45

Finding the Fourth Proportional to 12,436.47, 18,655.20 and 4,941.45

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Solution

The fourth proportional to 12,436.47, 18,655.20 and 4,941.45 is: 7,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.47 : 18,655.20 = 4,941.45 : x
  2. Step 2: Convert to fraction form
    12,436.47/18,655.20 = 4,941.45/x
  3. Step 3: Cross multiply
    12,436.47x = 18,655.20 × 4,941.45
  4. Step 4: Simplify right side
    12,436.47x = 92,183,738.04
  5. Step 5: Solve for x
    x = 92,183,738.04/12,436.47
  6. Step 6: Final answer
    x = 7,412.37

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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.