Home / 13,243.05-19,864.58-4,478.64

Finding the Fourth Proportional to 13,243.05, 19,864.58 and 4,478.64

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Solution

The fourth proportional to 13,243.05, 19,864.58 and 4,478.64 is: 6,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.05 : 19,864.58 = 4,478.64 : x
  2. Step 2: Convert to fraction form
    13,243.05/19,864.58 = 4,478.64/x
  3. Step 3: Cross multiply
    13,243.05x = 19,864.58 × 4,478.64
  4. Step 4: Simplify right side
    13,243.05x = 88,966,280.18
  5. Step 5: Solve for x
    x = 88,966,280.18/13,243.05
  6. Step 6: Final answer
    x = 6,717.96

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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.