Home / 15,300.07-21,116.30-8,495.65

Finding the Fourth Proportional to 15,300.07, 21,116.30 and 8,495.65

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Solution

The fourth proportional to 15,300.07, 21,116.30 and 8,495.65 is: 11,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.07 : 21,116.30 = 8,495.65 : x
  2. Step 2: Convert to fraction form
    15,300.07/21,116.30 = 8,495.65/x
  3. Step 3: Cross multiply
    15,300.07x = 21,116.30 × 8,495.65
  4. Step 4: Simplify right side
    15,300.07x = 179,396,678.01
  5. Step 5: Solve for x
    x = 179,396,678.01/15,300.07
  6. Step 6: Final answer
    x = 11,725.22

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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.