Home / 15,795.34-21,801.76-9,081.70

Finding the Fourth Proportional to 15,795.34, 21,801.76 and 9,081.70

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Solution

The fourth proportional to 15,795.34, 21,801.76 and 9,081.70 is: 12,535.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,795.34 : 21,801.76 = 9,081.70 : x
  2. Step 2: Convert to fraction form
    15,795.34/21,801.76 = 9,081.70/x
  3. Step 3: Cross multiply
    15,795.34x = 21,801.76 × 9,081.70
  4. Step 4: Simplify right side
    15,795.34x = 197,997,089.22
  5. Step 5: Solve for x
    x = 197,997,089.22/15,795.34
  6. Step 6: Final answer
    x = 12,535.16

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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.