Home / 15,985.49-22,059.73-8,911.73

Finding the Fourth Proportional to 15,985.49, 22,059.73 and 8,911.73

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Solution

The fourth proportional to 15,985.49, 22,059.73 and 8,911.73 is: 12,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.49 : 22,059.73 = 8,911.73 : x
  2. Step 2: Convert to fraction form
    15,985.49/22,059.73 = 8,911.73/x
  3. Step 3: Cross multiply
    15,985.49x = 22,059.73 × 8,911.73
  4. Step 4: Simplify right side
    15,985.49x = 196,590,357.63
  5. Step 5: Solve for x
    x = 196,590,357.63/15,985.49
  6. Step 6: Final answer
    x = 12,298.05

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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.