Home / 15,207.58-20,985.87-9,545.37

Finding the Fourth Proportional to 15,207.58, 20,985.87 and 9,545.37

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Solution

The fourth proportional to 15,207.58, 20,985.87 and 9,545.37 is: 13,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.58 : 20,985.87 = 9,545.37 : x
  2. Step 2: Convert to fraction form
    15,207.58/20,985.87 = 9,545.37/x
  3. Step 3: Cross multiply
    15,207.58x = 20,985.87 × 9,545.37
  4. Step 4: Simplify right side
    15,207.58x = 200,317,893.92
  5. Step 5: Solve for x
    x = 200,317,893.92/15,207.58
  6. Step 6: Final answer
    x = 13,172.24

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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.