Home / 8,430.14-12,642.91-2,507.02

Finding the Fourth Proportional to 8,430.14, 12,642.91 and 2,507.02

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Solution

The fourth proportional to 8,430.14, 12,642.91 and 2,507.02 is: 3,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.14 : 12,642.91 = 2,507.02 : x
  2. Step 2: Convert to fraction form
    8,430.14/12,642.91 = 2,507.02/x
  3. Step 3: Cross multiply
    8,430.14x = 12,642.91 × 2,507.02
  4. Step 4: Simplify right side
    8,430.14x = 31,695,990.35
  5. Step 5: Solve for x
    x = 31,695,990.35/8,430.14
  6. Step 6: Final answer
    x = 3,759.84

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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.