Home / 15,485.90-21,363.66-9,194.63

Finding the Fourth Proportional to 15,485.90, 21,363.66 and 9,194.63

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Solution

The fourth proportional to 15,485.90, 21,363.66 and 9,194.63 is: 12,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485.90 : 21,363.66 = 9,194.63 : x
  2. Step 2: Convert to fraction form
    15,485.90/21,363.66 = 9,194.63/x
  3. Step 3: Cross multiply
    15,485.90x = 21,363.66 × 9,194.63
  4. Step 4: Simplify right side
    15,485.90x = 196,430,842.33
  5. Step 5: Solve for x
    x = 196,430,842.33/15,485.90
  6. Step 6: Final answer
    x = 12,684.50

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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.