Home / 13,385.51-20,081.45-4,620.50

Finding the Fourth Proportional to 13,385.51, 20,081.45 and 4,620.50

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Solution

The fourth proportional to 13,385.51, 20,081.45 and 4,620.50 is: 6,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.51 : 20,081.45 = 4,620.50 : x
  2. Step 2: Convert to fraction form
    13,385.51/20,081.45 = 4,620.50/x
  3. Step 3: Cross multiply
    13,385.51x = 20,081.45 × 4,620.50
  4. Step 4: Simplify right side
    13,385.51x = 92,786,216.22
  5. Step 5: Solve for x
    x = 92,786,216.22/13,385.51
  6. Step 6: Final answer
    x = 6,931.84

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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.