Home / 6,118.80-8,430.84-5,615.52

Finding the Fourth Proportional to 6,118.80, 8,430.84 and 5,615.52

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Solution

The fourth proportional to 6,118.80, 8,430.84 and 5,615.52 is: 7,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.80 : 8,430.84 = 5,615.52 : x
  2. Step 2: Convert to fraction form
    6,118.80/8,430.84 = 5,615.52/x
  3. Step 3: Cross multiply
    6,118.80x = 8,430.84 × 5,615.52
  4. Step 4: Simplify right side
    6,118.80x = 47,343,550.64
  5. Step 5: Solve for x
    x = 47,343,550.64/6,118.80
  6. Step 6: Final answer
    x = 7,737.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.