Home / 7,430.10-10,244.58-6,419.98

Finding the Fourth Proportional to 7,430.10, 10,244.58 and 6,419.98

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Solution

The fourth proportional to 7,430.10, 10,244.58 and 6,419.98 is: 8,851.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.10 : 10,244.58 = 6,419.98 : x
  2. Step 2: Convert to fraction form
    7,430.10/10,244.58 = 6,419.98/x
  3. Step 3: Cross multiply
    7,430.10x = 10,244.58 × 6,419.98
  4. Step 4: Simplify right side
    7,430.10x = 65,770,016.25
  5. Step 5: Solve for x
    x = 65,770,016.25/7,430.10
  6. Step 6: Final answer
    x = 8,851.83

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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.