Home / 9,929.89-13,705.64-6,150.76

Finding the Fourth Proportional to 9,929.89, 13,705.64 and 6,150.76

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Solution

The fourth proportional to 9,929.89, 13,705.64 and 6,150.76 is: 8,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.89 : 13,705.64 = 6,150.76 : x
  2. Step 2: Convert to fraction form
    9,929.89/13,705.64 = 6,150.76/x
  3. Step 3: Cross multiply
    9,929.89x = 13,705.64 × 6,150.76
  4. Step 4: Simplify right side
    9,929.89x = 84,300,102.29
  5. Step 5: Solve for x
    x = 84,300,102.29/9,929.89
  6. Step 6: Final answer
    x = 8,489.53

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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.