Home / 19,439.76-26,820.60-11,484.72

Finding the Fourth Proportional to 19,439.76, 26,820.60 and 11,484.72

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Solution

The fourth proportional to 19,439.76, 26,820.60 and 11,484.72 is: 15,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.76 : 26,820.60 = 11,484.72 : x
  2. Step 2: Convert to fraction form
    19,439.76/26,820.60 = 11,484.72/x
  3. Step 3: Cross multiply
    19,439.76x = 26,820.60 × 11,484.72
  4. Step 4: Simplify right side
    19,439.76x = 308,027,081.23
  5. Step 5: Solve for x
    x = 308,027,081.23/19,439.76
  6. Step 6: Final answer
    x = 15,845.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.