Home / 9,147.10-12,623-5,369.52

Finding the Fourth Proportional to 9,147.10, 12,623 and 5,369.52

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Solution

The fourth proportional to 9,147.10, 12,623 and 5,369.52 is: 7,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.10 : 12,623 = 5,369.52 : x
  2. Step 2: Convert to fraction form
    9,147.10/12,623 = 5,369.52/x
  3. Step 3: Cross multiply
    9,147.10x = 12,623 × 5,369.52
  4. Step 4: Simplify right side
    9,147.10x = 67,779,450.96
  5. Step 5: Solve for x
    x = 67,779,450.96/9,147.10
  6. Step 6: Final answer
    x = 7,409.94

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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.