Home / 9,420.44-13,000.57-5,387.92

Finding the Fourth Proportional to 9,420.44, 13,000.57 and 5,387.92

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Solution

The fourth proportional to 9,420.44, 13,000.57 and 5,387.92 is: 7,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.44 : 13,000.57 = 5,387.92 : x
  2. Step 2: Convert to fraction form
    9,420.44/13,000.57 = 5,387.92/x
  3. Step 3: Cross multiply
    9,420.44x = 13,000.57 × 5,387.92
  4. Step 4: Simplify right side
    9,420.44x = 70,045,985.14
  5. Step 5: Solve for x
    x = 70,045,985.14/9,420.44
  6. Step 6: Final answer
    x = 7,435.54

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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.