Home / 10,179.95-13,971.44-9,335.52

Finding the Fourth Proportional to 10,179.95, 13,971.44 and 9,335.52

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Solution

The fourth proportional to 10,179.95, 13,971.44 and 9,335.52 is: 12,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.95 : 13,971.44 = 9,335.52 : x
  2. Step 2: Convert to fraction form
    10,179.95/13,971.44 = 9,335.52/x
  3. Step 3: Cross multiply
    10,179.95x = 13,971.44 × 9,335.52
  4. Step 4: Simplify right side
    10,179.95x = 130,430,680.89
  5. Step 5: Solve for x
    x = 130,430,680.89/10,179.95
  6. Step 6: Final answer
    x = 12,812.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.