Home / 13,760.79-18,990.46-8,095.80

Finding the Fourth Proportional to 13,760.79, 18,990.46 and 8,095.80

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Solution

The fourth proportional to 13,760.79, 18,990.46 and 8,095.80 is: 11,172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.79 : 18,990.46 = 8,095.80 : x
  2. Step 2: Convert to fraction form
    13,760.79/18,990.46 = 8,095.80/x
  3. Step 3: Cross multiply
    13,760.79x = 18,990.46 × 8,095.80
  4. Step 4: Simplify right side
    13,760.79x = 153,742,966.07
  5. Step 5: Solve for x
    x = 153,742,966.07/13,760.79
  6. Step 6: Final answer
    x = 11,172.54

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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.