Home / 13,737.08-18,957.53-7,769.63

Finding the Fourth Proportional to 13,737.08, 18,957.53 and 7,769.63

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Solution

The fourth proportional to 13,737.08, 18,957.53 and 7,769.63 is: 10,722.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.08 : 18,957.53 = 7,769.63 : x
  2. Step 2: Convert to fraction form
    13,737.08/18,957.53 = 7,769.63/x
  3. Step 3: Cross multiply
    13,737.08x = 18,957.53 × 7,769.63
  4. Step 4: Simplify right side
    13,737.08x = 147,292,860.18
  5. Step 5: Solve for x
    x = 147,292,860.18/13,737.08
  6. Step 6: Final answer
    x = 10,722.29

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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.