Home / 10,247.28-15,362.64-9,427.20

Finding the Fourth Proportional to 10,247.28, 15,362.64 and 9,427.20

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Solution

The fourth proportional to 10,247.28, 15,362.64 and 9,427.20 is: 14,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.28 : 15,362.64 = 9,427.20 : x
  2. Step 2: Convert to fraction form
    10,247.28/15,362.64 = 9,427.20/x
  3. Step 3: Cross multiply
    10,247.28x = 15,362.64 × 9,427.20
  4. Step 4: Simplify right side
    10,247.28x = 144,826,679.81
  5. Step 5: Solve for x
    x = 144,826,679.81/10,247.28
  6. Step 6: Final answer
    x = 14,133.18

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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.