Home / 13,412.63-18,508.56-7,444.30

Finding the Fourth Proportional to 13,412.63, 18,508.56 and 7,444.30

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Solution

The fourth proportional to 13,412.63, 18,508.56 and 7,444.30 is: 10,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.63 : 18,508.56 = 7,444.30 : x
  2. Step 2: Convert to fraction form
    13,412.63/18,508.56 = 7,444.30/x
  3. Step 3: Cross multiply
    13,412.63x = 18,508.56 × 7,444.30
  4. Step 4: Simplify right side
    13,412.63x = 137,783,273.21
  5. Step 5: Solve for x
    x = 137,783,273.21/13,412.63
  6. Step 6: Final answer
    x = 10,272.65

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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.