Home / 19,330.13-28,999.81-6,851.24

Finding the Fourth Proportional to 19,330.13, 28,999.81 and 6,851.24

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Solution

The fourth proportional to 19,330.13, 28,999.81 and 6,851.24 is: 10,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.13 : 28,999.81 = 6,851.24 : x
  2. Step 2: Convert to fraction form
    19,330.13/28,999.81 = 6,851.24/x
  3. Step 3: Cross multiply
    19,330.13x = 28,999.81 × 6,851.24
  4. Step 4: Simplify right side
    19,330.13x = 198,684,749.89
  5. Step 5: Solve for x
    x = 198,684,749.89/19,330.13
  6. Step 6: Final answer
    x = 10,278.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.