Home / 10,921.19-15,068.81-6,948.14

Finding the Fourth Proportional to 10,921.19, 15,068.81 and 6,948.14

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Solution

The fourth proportional to 10,921.19, 15,068.81 and 6,948.14 is: 9,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.19 : 15,068.81 = 6,948.14 : x
  2. Step 2: Convert to fraction form
    10,921.19/15,068.81 = 6,948.14/x
  3. Step 3: Cross multiply
    10,921.19x = 15,068.81 × 6,948.14
  4. Step 4: Simplify right side
    10,921.19x = 104,700,143.54
  5. Step 5: Solve for x
    x = 104,700,143.54/10,921.19
  6. Step 6: Final answer
    x = 9,586.88

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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.