Home / 13,009.74-19,520.54-5,515.35

Finding the Fourth Proportional to 13,009.74, 19,520.54 and 5,515.35

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Solution

The fourth proportional to 13,009.74, 19,520.54 and 5,515.35 is: 8,275.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.74 : 19,520.54 = 5,515.35 : x
  2. Step 2: Convert to fraction form
    13,009.74/19,520.54 = 5,515.35/x
  3. Step 3: Cross multiply
    13,009.74x = 19,520.54 × 5,515.35
  4. Step 4: Simplify right side
    13,009.74x = 107,662,610.29
  5. Step 5: Solve for x
    x = 107,662,610.29/13,009.74
  6. Step 6: Final answer
    x = 8,275.54

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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.