Home / 13,045.23-18,002.46-7,739.92

Finding the Fourth Proportional to 13,045.23, 18,002.46 and 7,739.92

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Solution

The fourth proportional to 13,045.23, 18,002.46 and 7,739.92 is: 10,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.23 : 18,002.46 = 7,739.92 : x
  2. Step 2: Convert to fraction form
    13,045.23/18,002.46 = 7,739.92/x
  3. Step 3: Cross multiply
    13,045.23x = 18,002.46 × 7,739.92
  4. Step 4: Simplify right side
    13,045.23x = 139,337,600.20
  5. Step 5: Solve for x
    x = 139,337,600.20/13,045.23
  6. Step 6: Final answer
    x = 10,681.11

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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.