Home / 10,298.10-15,410.70-7,163.40

Finding the Fourth Proportional to 10,298.10, 15,410.70 and 7,163.40

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Solution

The fourth proportional to 10,298.10, 15,410.70 and 7,163.40 is: 10,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,298.10 : 15,410.70 = 7,163.40 : x
  2. Step 2: Convert to fraction form
    10,298.10/15,410.70 = 7,163.40/x
  3. Step 3: Cross multiply
    10,298.10x = 15,410.70 × 7,163.40
  4. Step 4: Simplify right side
    10,298.10x = 110,393,008.38
  5. Step 5: Solve for x
    x = 110,393,008.38/10,298.10
  6. Step 6: Final answer
    x = 10,719.75

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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.