Home / 12,240.63-18,353.55-6,686.25

Finding the Fourth Proportional to 12,240.63, 18,353.55 and 6,686.25

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Solution

The fourth proportional to 12,240.63, 18,353.55 and 6,686.25 is: 10,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.63 : 18,353.55 = 6,686.25 : x
  2. Step 2: Convert to fraction form
    12,240.63/18,353.55 = 6,686.25/x
  3. Step 3: Cross multiply
    12,240.63x = 18,353.55 × 6,686.25
  4. Step 4: Simplify right side
    12,240.63x = 122,716,423.69
  5. Step 5: Solve for x
    x = 122,716,423.69/12,240.63
  6. Step 6: Final answer
    x = 10,025.34

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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.