Home / 13,389.24-20,099.46-7,846.68

Finding the Fourth Proportional to 13,389.24, 20,099.46 and 7,846.68

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Solution

The fourth proportional to 13,389.24, 20,099.46 and 7,846.68 is: 11,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.24 : 20,099.46 = 7,846.68 : x
  2. Step 2: Convert to fraction form
    13,389.24/20,099.46 = 7,846.68/x
  3. Step 3: Cross multiply
    13,389.24x = 20,099.46 × 7,846.68
  4. Step 4: Simplify right side
    13,389.24x = 157,714,030.79
  5. Step 5: Solve for x
    x = 157,714,030.79/13,389.24
  6. Step 6: Final answer
    x = 11,779.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.