Home / 13,319.89-19,960.77-9,782.14

Finding the Fourth Proportional to 13,319.89, 19,960.77 and 9,782.14

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Solution

The fourth proportional to 13,319.89, 19,960.77 and 9,782.14 is: 14,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.89 : 19,960.77 = 9,782.14 : x
  2. Step 2: Convert to fraction form
    13,319.89/19,960.77 = 9,782.14/x
  3. Step 3: Cross multiply
    13,319.89x = 19,960.77 × 9,782.14
  4. Step 4: Simplify right side
    13,319.89x = 195,258,946.84
  5. Step 5: Solve for x
    x = 195,258,946.84/13,319.89
  6. Step 6: Final answer
    x = 14,659.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.