Home / 13,184.60-19,820.10-9,315.80

Finding the Fourth Proportional to 13,184.60, 19,820.10 and 9,315.80

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Solution

The fourth proportional to 13,184.60, 19,820.10 and 9,315.80 is: 14,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.60 : 19,820.10 = 9,315.80 : x
  2. Step 2: Convert to fraction form
    13,184.60/19,820.10 = 9,315.80/x
  3. Step 3: Cross multiply
    13,184.60x = 19,820.10 × 9,315.80
  4. Step 4: Simplify right side
    13,184.60x = 184,640,087.58
  5. Step 5: Solve for x
    x = 184,640,087.58/13,184.60
  6. Step 6: Final answer
    x = 14,004.22

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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.