Home / 13,346.68-18,417.61-7,377.99

Finding the Fourth Proportional to 13,346.68, 18,417.61 and 7,377.99

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Solution

The fourth proportional to 13,346.68, 18,417.61 and 7,377.99 is: 10,181.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.68 : 18,417.61 = 7,377.99 : x
  2. Step 2: Convert to fraction form
    13,346.68/18,417.61 = 7,377.99/x
  3. Step 3: Cross multiply
    13,346.68x = 18,417.61 × 7,377.99
  4. Step 4: Simplify right side
    13,346.68x = 135,884,813.43
  5. Step 5: Solve for x
    x = 135,884,813.43/13,346.68
  6. Step 6: Final answer
    x = 10,181.17

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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.