Home / 11,388.13-17,070.95-5,458.19

Finding the Fourth Proportional to 11,388.13, 17,070.95 and 5,458.19

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Solution

The fourth proportional to 11,388.13, 17,070.95 and 5,458.19 is: 8,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.13 : 17,070.95 = 5,458.19 : x
  2. Step 2: Convert to fraction form
    11,388.13/17,070.95 = 5,458.19/x
  3. Step 3: Cross multiply
    11,388.13x = 17,070.95 × 5,458.19
  4. Step 4: Simplify right side
    11,388.13x = 93,176,416.87
  5. Step 5: Solve for x
    x = 93,176,416.87/11,388.13
  6. Step 6: Final answer
    x = 8,181.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.