Home / 15,358.08-21,166.08-11,159.04

Finding the Fourth Proportional to 15,358.08, 21,166.08 and 11,159.04

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Solution

The fourth proportional to 15,358.08, 21,166.08 and 11,159.04 is: 15,379.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.08 : 21,166.08 = 11,159.04 : x
  2. Step 2: Convert to fraction form
    15,358.08/21,166.08 = 11,159.04/x
  3. Step 3: Cross multiply
    15,358.08x = 21,166.08 × 11,159.04
  4. Step 4: Simplify right side
    15,358.08x = 236,193,133.36
  5. Step 5: Solve for x
    x = 236,193,133.36/15,358.08
  6. Step 6: Final answer
    x = 15,379.08

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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.