Home / 15,265.47-21,065.77-8,550.77

Finding the Fourth Proportional to 15,265.47, 21,065.77 and 8,550.77

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Solution

The fourth proportional to 15,265.47, 21,065.77 and 8,550.77 is: 11,799.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,265.47 : 21,065.77 = 8,550.77 : x
  2. Step 2: Convert to fraction form
    15,265.47/21,065.77 = 8,550.77/x
  3. Step 3: Cross multiply
    15,265.47x = 21,065.77 × 8,550.77
  4. Step 4: Simplify right side
    15,265.47x = 180,128,554.14
  5. Step 5: Solve for x
    x = 180,128,554.14/15,265.47
  6. Step 6: Final answer
    x = 11,799.74

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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.