Home / 15,206.45-20,985.23-9,541.42

Finding the Fourth Proportional to 15,206.45, 20,985.23 and 9,541.42

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Solution

The fourth proportional to 15,206.45, 20,985.23 and 9,541.42 is: 13,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206.45 : 20,985.23 = 9,541.42 : x
  2. Step 2: Convert to fraction form
    15,206.45/20,985.23 = 9,541.42/x
  3. Step 3: Cross multiply
    15,206.45x = 20,985.23 × 9,541.42
  4. Step 4: Simplify right side
    15,206.45x = 200,228,893.23
  5. Step 5: Solve for x
    x = 200,228,893.23/15,206.45
  6. Step 6: Final answer
    x = 13,167.37

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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.