Home / 8,430.95-12,638.23-4,051.49

Finding the Fourth Proportional to 8,430.95, 12,638.23 and 4,051.49

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Solution

The fourth proportional to 8,430.95, 12,638.23 and 4,051.49 is: 6,073.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.95 : 12,638.23 = 4,051.49 : x
  2. Step 2: Convert to fraction form
    8,430.95/12,638.23 = 4,051.49/x
  3. Step 3: Cross multiply
    8,430.95x = 12,638.23 × 4,051.49
  4. Step 4: Simplify right side
    8,430.95x = 51,203,589.14
  5. Step 5: Solve for x
    x = 51,203,589.14/8,430.95
  6. Step 6: Final answer
    x = 6,073.29

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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.