Home / 12,386.93-18,582.21-4,490.03

Finding the Fourth Proportional to 12,386.93, 18,582.21 and 4,490.03

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Solution

The fourth proportional to 12,386.93, 18,582.21 and 4,490.03 is: 6,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.93 : 18,582.21 = 4,490.03 : x
  2. Step 2: Convert to fraction form
    12,386.93/18,582.21 = 4,490.03/x
  3. Step 3: Cross multiply
    12,386.93x = 18,582.21 × 4,490.03
  4. Step 4: Simplify right side
    12,386.93x = 83,434,726.82
  5. Step 5: Solve for x
    x = 83,434,726.82/12,386.93
  6. Step 6: Final answer
    x = 6,735.71

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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.