Home / 13,723.04-18,939.47-8,948.09

Finding the Fourth Proportional to 13,723.04, 18,939.47 and 8,948.09

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Solution

The fourth proportional to 13,723.04, 18,939.47 and 8,948.09 is: 12,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.04 : 18,939.47 = 8,948.09 : x
  2. Step 2: Convert to fraction form
    13,723.04/18,939.47 = 8,948.09/x
  3. Step 3: Cross multiply
    13,723.04x = 18,939.47 × 8,948.09
  4. Step 4: Simplify right side
    13,723.04x = 169,471,942.67
  5. Step 5: Solve for x
    x = 169,471,942.67/13,723.04
  6. Step 6: Final answer
    x = 12,349.45

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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.