Home / 12,798.19-19,199.75-4,480.57

Finding the Fourth Proportional to 12,798.19, 19,199.75 and 4,480.57

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Solution

The fourth proportional to 12,798.19, 19,199.75 and 4,480.57 is: 6,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.19 : 19,199.75 = 4,480.57 : x
  2. Step 2: Convert to fraction form
    12,798.19/19,199.75 = 4,480.57/x
  3. Step 3: Cross multiply
    12,798.19x = 19,199.75 × 4,480.57
  4. Step 4: Simplify right side
    12,798.19x = 86,025,823.86
  5. Step 5: Solve for x
    x = 86,025,823.86/12,798.19
  6. Step 6: Final answer
    x = 6,721.72

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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.