Home / 10,435.20-14,400.50-5,719.40

Finding the Fourth Proportional to 10,435.20, 14,400.50 and 5,719.40

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Solution

The fourth proportional to 10,435.20, 14,400.50 and 5,719.40 is: 7,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.20 : 14,400.50 = 5,719.40 : x
  2. Step 2: Convert to fraction form
    10,435.20/14,400.50 = 5,719.40/x
  3. Step 3: Cross multiply
    10,435.20x = 14,400.50 × 5,719.40
  4. Step 4: Simplify right side
    10,435.20x = 82,362,219.70
  5. Step 5: Solve for x
    x = 82,362,219.70/10,435.20
  6. Step 6: Final answer
    x = 7,892.73

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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.