Home / 13,319.37-18,374.63-7,727.13

Finding the Fourth Proportional to 13,319.37, 18,374.63 and 7,727.13

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Solution

The fourth proportional to 13,319.37, 18,374.63 and 7,727.13 is: 10,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.37 : 18,374.63 = 7,727.13 : x
  2. Step 2: Convert to fraction form
    13,319.37/18,374.63 = 7,727.13/x
  3. Step 3: Cross multiply
    13,319.37x = 18,374.63 × 7,727.13
  4. Step 4: Simplify right side
    13,319.37x = 141,983,082.16
  5. Step 5: Solve for x
    x = 141,983,082.16/13,319.37
  6. Step 6: Final answer
    x = 10,659.90

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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.