Home / 13,439.86-18,547.04-7,471.62

Finding the Fourth Proportional to 13,439.86, 18,547.04 and 7,471.62

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Solution

The fourth proportional to 13,439.86, 18,547.04 and 7,471.62 is: 10,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.86 : 18,547.04 = 7,471.62 : x
  2. Step 2: Convert to fraction form
    13,439.86/18,547.04 = 7,471.62/x
  3. Step 3: Cross multiply
    13,439.86x = 18,547.04 × 7,471.62
  4. Step 4: Simplify right side
    13,439.86x = 138,576,453.68
  5. Step 5: Solve for x
    x = 138,576,453.68/13,439.86
  6. Step 6: Final answer
    x = 10,310.86

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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.