Home / 13,727.77-18,944.28-7,440.16

Finding the Fourth Proportional to 13,727.77, 18,944.28 and 7,440.16

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Solution

The fourth proportional to 13,727.77, 18,944.28 and 7,440.16 is: 10,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.77 : 18,944.28 = 7,440.16 : x
  2. Step 2: Convert to fraction form
    13,727.77/18,944.28 = 7,440.16/x
  3. Step 3: Cross multiply
    13,727.77x = 18,944.28 × 7,440.16
  4. Step 4: Simplify right side
    13,727.77x = 140,948,474.28
  5. Step 5: Solve for x
    x = 140,948,474.28/13,727.77
  6. Step 6: Final answer
    x = 10,267.40

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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.