Home / 13,065.72-19,600.20-4,303.68

Finding the Fourth Proportional to 13,065.72, 19,600.20 and 4,303.68

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Solution

The fourth proportional to 13,065.72, 19,600.20 and 4,303.68 is: 6,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.72 : 19,600.20 = 4,303.68 : x
  2. Step 2: Convert to fraction form
    13,065.72/19,600.20 = 4,303.68/x
  3. Step 3: Cross multiply
    13,065.72x = 19,600.20 × 4,303.68
  4. Step 4: Simplify right side
    13,065.72x = 84,352,988.74
  5. Step 5: Solve for x
    x = 84,352,988.74/13,065.72
  6. Step 6: Final answer
    x = 6,456.05

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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.