Home / 13,283.75-18,331.46-7,315.29

Finding the Fourth Proportional to 13,283.75, 18,331.46 and 7,315.29

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Solution

The fourth proportional to 13,283.75, 18,331.46 and 7,315.29 is: 10,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.75 : 18,331.46 = 7,315.29 : x
  2. Step 2: Convert to fraction form
    13,283.75/18,331.46 = 7,315.29/x
  3. Step 3: Cross multiply
    13,283.75x = 18,331.46 × 7,315.29
  4. Step 4: Simplify right side
    13,283.75x = 134,099,946.02
  5. Step 5: Solve for x
    x = 134,099,946.02/13,283.75
  6. Step 6: Final answer
    x = 10,095.04

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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.