Home / 13,417.19-18,516.32-7,448.94

Finding the Fourth Proportional to 13,417.19, 18,516.32 and 7,448.94

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Solution

The fourth proportional to 13,417.19, 18,516.32 and 7,448.94 is: 10,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.19 : 18,516.32 = 7,448.94 : x
  2. Step 2: Convert to fraction form
    13,417.19/18,516.32 = 7,448.94/x
  3. Step 3: Cross multiply
    13,417.19x = 18,516.32 × 7,448.94
  4. Step 4: Simplify right side
    13,417.19x = 137,926,956.70
  5. Step 5: Solve for x
    x = 137,926,956.70/13,417.19
  6. Step 6: Final answer
    x = 10,279.87

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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.