Home / 11,430.24-15,770.40-7,237.44

Finding the Fourth Proportional to 11,430.24, 15,770.40 and 7,237.44

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Solution

The fourth proportional to 11,430.24, 15,770.40 and 7,237.44 is: 9,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.24 : 15,770.40 = 7,237.44 : x
  2. Step 2: Convert to fraction form
    11,430.24/15,770.40 = 7,237.44/x
  3. Step 3: Cross multiply
    11,430.24x = 15,770.40 × 7,237.44
  4. Step 4: Simplify right side
    11,430.24x = 114,137,323.78
  5. Step 5: Solve for x
    x = 114,137,323.78/11,430.24
  6. Step 6: Final answer
    x = 9,985.56

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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.