Home / 15,617.77-21,552.59-9,648.07

Finding the Fourth Proportional to 15,617.77, 21,552.59 and 9,648.07

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Solution

The fourth proportional to 15,617.77, 21,552.59 and 9,648.07 is: 13,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.77 : 21,552.59 = 9,648.07 : x
  2. Step 2: Convert to fraction form
    15,617.77/21,552.59 = 9,648.07/x
  3. Step 3: Cross multiply
    15,617.77x = 21,552.59 × 9,648.07
  4. Step 4: Simplify right side
    15,617.77x = 207,940,897.00
  5. Step 5: Solve for x
    x = 207,940,897.00/15,617.77
  6. Step 6: Final answer
    x = 13,314.38

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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.