Home / 15,268.70-21,070.63-8,554.31

Finding the Fourth Proportional to 15,268.70, 21,070.63 and 8,554.31

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Solution

The fourth proportional to 15,268.70, 21,070.63 and 8,554.31 is: 11,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268.70 : 21,070.63 = 8,554.31 : x
  2. Step 2: Convert to fraction form
    15,268.70/21,070.63 = 8,554.31/x
  3. Step 3: Cross multiply
    15,268.70x = 21,070.63 × 8,554.31
  4. Step 4: Simplify right side
    15,268.70x = 180,244,685.27
  5. Step 5: Solve for x
    x = 180,244,685.27/15,268.70
  6. Step 6: Final answer
    x = 11,804.85

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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.