Home / 13,345.92-20,020.80-4,458.24

Finding the Fourth Proportional to 13,345.92, 20,020.80 and 4,458.24

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Solution

The fourth proportional to 13,345.92, 20,020.80 and 4,458.24 is: 6,688.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.92 : 20,020.80 = 4,458.24 : x
  2. Step 2: Convert to fraction form
    13,345.92/20,020.80 = 4,458.24/x
  3. Step 3: Cross multiply
    13,345.92x = 20,020.80 × 4,458.24
  4. Step 4: Simplify right side
    13,345.92x = 89,257,531.39
  5. Step 5: Solve for x
    x = 89,257,531.39/13,345.92
  6. Step 6: Final answer
    x = 6,688.00

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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.