Home / 15,072.34-20,798.80-8,699.18

Finding the Fourth Proportional to 15,072.34, 20,798.80 and 8,699.18

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Solution

The fourth proportional to 15,072.34, 20,798.80 and 8,699.18 is: 12,004.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.34 : 20,798.80 = 8,699.18 : x
  2. Step 2: Convert to fraction form
    15,072.34/20,798.80 = 8,699.18/x
  3. Step 3: Cross multiply
    15,072.34x = 20,798.80 × 8,699.18
  4. Step 4: Simplify right side
    15,072.34x = 180,932,504.98
  5. Step 5: Solve for x
    x = 180,932,504.98/15,072.34
  6. Step 6: Final answer
    x = 12,004.27

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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.