Home / 15,265.80-21,068.14-8,551.32

Finding the Fourth Proportional to 15,265.80, 21,068.14 and 8,551.32

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Solution

The fourth proportional to 15,265.80, 21,068.14 and 8,551.32 is: 11,801.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,265.80 : 21,068.14 = 8,551.32 : x
  2. Step 2: Convert to fraction form
    15,265.80/21,068.14 = 8,551.32/x
  3. Step 3: Cross multiply
    15,265.80x = 21,068.14 × 8,551.32
  4. Step 4: Simplify right side
    15,265.80x = 180,160,406.94
  5. Step 5: Solve for x
    x = 180,160,406.94/15,265.80
  6. Step 6: Final answer
    x = 11,801.57

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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.