Home / 12,354.05-17,047.90-7,318.76

Finding the Fourth Proportional to 12,354.05, 17,047.90 and 7,318.76

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Solution

The fourth proportional to 12,354.05, 17,047.90 and 7,318.76 is: 10,099.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.05 : 17,047.90 = 7,318.76 : x
  2. Step 2: Convert to fraction form
    12,354.05/17,047.90 = 7,318.76/x
  3. Step 3: Cross multiply
    12,354.05x = 17,047.90 × 7,318.76
  4. Step 4: Simplify right side
    12,354.05x = 124,769,412.51
  5. Step 5: Solve for x
    x = 124,769,412.51/12,354.05
  6. Step 6: Final answer
    x = 10,099.47

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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.