Home / 10,430.35-15,645.59-2,639.16

Finding the Fourth Proportional to 10,430.35, 15,645.59 and 2,639.16

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Solution

The fourth proportional to 10,430.35, 15,645.59 and 2,639.16 is: 3,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.35 : 15,645.59 = 2,639.16 : x
  2. Step 2: Convert to fraction form
    10,430.35/15,645.59 = 2,639.16/x
  3. Step 3: Cross multiply
    10,430.35x = 15,645.59 × 2,639.16
  4. Step 4: Simplify right side
    10,430.35x = 41,291,215.30
  5. Step 5: Solve for x
    x = 41,291,215.30/10,430.35
  6. Step 6: Final answer
    x = 3,958.76

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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.