Home / 15,598.90-21,520.37-9,620.19

Finding the Fourth Proportional to 15,598.90, 21,520.37 and 9,620.19

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Solution

The fourth proportional to 15,598.90, 21,520.37 and 9,620.19 is: 13,272.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598.90 : 21,520.37 = 9,620.19 : x
  2. Step 2: Convert to fraction form
    15,598.90/21,520.37 = 9,620.19/x
  3. Step 3: Cross multiply
    15,598.90x = 21,520.37 × 9,620.19
  4. Step 4: Simplify right side
    15,598.90x = 207,029,892.57
  5. Step 5: Solve for x
    x = 207,029,892.57/15,598.90
  6. Step 6: Final answer
    x = 13,272.09

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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.