Home / 13,346.05-18,417.89-7,377.81

Finding the Fourth Proportional to 13,346.05, 18,417.89 and 7,377.81

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Solution

The fourth proportional to 13,346.05, 18,417.89 and 7,377.81 is: 10,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.05 : 18,417.89 = 7,377.81 : x
  2. Step 2: Convert to fraction form
    13,346.05/18,417.89 = 7,377.81/x
  3. Step 3: Cross multiply
    13,346.05x = 18,417.89 × 7,377.81
  4. Step 4: Simplify right side
    13,346.05x = 135,883,693.02
  5. Step 5: Solve for x
    x = 135,883,693.02/13,346.05
  6. Step 6: Final answer
    x = 10,181.57

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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.