Home / 15,268.29-21,070.09-8,554.20

Finding the Fourth Proportional to 15,268.29, 21,070.09 and 8,554.20

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Solution

The fourth proportional to 15,268.29, 21,070.09 and 8,554.20 is: 11,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268.29 : 21,070.09 = 8,554.20 : x
  2. Step 2: Convert to fraction form
    15,268.29/21,070.09 = 8,554.20/x
  3. Step 3: Cross multiply
    15,268.29x = 21,070.09 × 8,554.20
  4. Step 4: Simplify right side
    15,268.29x = 180,237,763.88
  5. Step 5: Solve for x
    x = 180,237,763.88/15,268.29
  6. Step 6: Final answer
    x = 11,804.71

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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.