Home / 12,443.79-18,666.24-4,124.55

Finding the Fourth Proportional to 12,443.79, 18,666.24 and 4,124.55

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Solution

The fourth proportional to 12,443.79, 18,666.24 and 4,124.55 is: 6,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.79 : 18,666.24 = 4,124.55 : x
  2. Step 2: Convert to fraction form
    12,443.79/18,666.24 = 4,124.55/x
  3. Step 3: Cross multiply
    12,443.79x = 18,666.24 × 4,124.55
  4. Step 4: Simplify right side
    12,443.79x = 76,989,840.19
  5. Step 5: Solve for x
    x = 76,989,840.19/12,443.79
  6. Step 6: Final answer
    x = 6,187.01

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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.