Home / 13,737.04-18,956.36-7,768.36

Finding the Fourth Proportional to 13,737.04, 18,956.36 and 7,768.36

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Solution

The fourth proportional to 13,737.04, 18,956.36 and 7,768.36 is: 10,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.04 : 18,956.36 = 7,768.36 : x
  2. Step 2: Convert to fraction form
    13,737.04/18,956.36 = 7,768.36/x
  3. Step 3: Cross multiply
    13,737.04x = 18,956.36 × 7,768.36
  4. Step 4: Simplify right side
    13,737.04x = 147,259,828.77
  5. Step 5: Solve for x
    x = 147,259,828.77/13,737.04
  6. Step 6: Final answer
    x = 10,719.91

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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.