Home / 12,444.89-18,670.03-5,785.47

Finding the Fourth Proportional to 12,444.89, 18,670.03 and 5,785.47

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Solution

The fourth proportional to 12,444.89, 18,670.03 and 5,785.47 is: 8,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.89 : 18,670.03 = 5,785.47 : x
  2. Step 2: Convert to fraction form
    12,444.89/18,670.03 = 5,785.47/x
  3. Step 3: Cross multiply
    12,444.89x = 18,670.03 × 5,785.47
  4. Step 4: Simplify right side
    12,444.89x = 108,014,898.46
  5. Step 5: Solve for x
    x = 108,014,898.46/12,444.89
  6. Step 6: Final answer
    x = 8,679.46

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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.