Home / 10,812.40-16,228.20-9,353.20

Finding the Fourth Proportional to 10,812.40, 16,228.20 and 9,353.20

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Solution

The fourth proportional to 10,812.40, 16,228.20 and 9,353.20 is: 14,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.40 : 16,228.20 = 9,353.20 : x
  2. Step 2: Convert to fraction form
    10,812.40/16,228.20 = 9,353.20/x
  3. Step 3: Cross multiply
    10,812.40x = 16,228.20 × 9,353.20
  4. Step 4: Simplify right side
    10,812.40x = 151,785,600.24
  5. Step 5: Solve for x
    x = 151,785,600.24/10,812.40
  6. Step 6: Final answer
    x = 14,038.10

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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.