Home / 10,210.40-15,319.20-9,850.40

Finding the Fourth Proportional to 10,210.40, 15,319.20 and 9,850.40

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Solution

The fourth proportional to 10,210.40, 15,319.20 and 9,850.40 is: 14,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,210.40 : 15,319.20 = 9,850.40 : x
  2. Step 2: Convert to fraction form
    10,210.40/15,319.20 = 9,850.40/x
  3. Step 3: Cross multiply
    10,210.40x = 15,319.20 × 9,850.40
  4. Step 4: Simplify right side
    10,210.40x = 150,900,247.68
  5. Step 5: Solve for x
    x = 150,900,247.68/10,210.40
  6. Step 6: Final answer
    x = 14,779.07

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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.