Home / 13,014.88-17,951.63-8,240.90

Finding the Fourth Proportional to 13,014.88, 17,951.63 and 8,240.90

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Solution

The fourth proportional to 13,014.88, 17,951.63 and 8,240.90 is: 11,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,014.88 : 17,951.63 = 8,240.90 : x
  2. Step 2: Convert to fraction form
    13,014.88/17,951.63 = 8,240.90/x
  3. Step 3: Cross multiply
    13,014.88x = 17,951.63 × 8,240.90
  4. Step 4: Simplify right side
    13,014.88x = 147,937,518.51
  5. Step 5: Solve for x
    x = 147,937,518.51/13,014.88
  6. Step 6: Final answer
    x = 11,366.80

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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.