Home / 13,220.77-19,818.70-4,449.55

Finding the Fourth Proportional to 13,220.77, 19,818.70 and 4,449.55

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Solution

The fourth proportional to 13,220.77, 19,818.70 and 4,449.55 is: 6,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.77 : 19,818.70 = 4,449.55 : x
  2. Step 2: Convert to fraction form
    13,220.77/19,818.70 = 4,449.55/x
  3. Step 3: Cross multiply
    13,220.77x = 19,818.70 × 4,449.55
  4. Step 4: Simplify right side
    13,220.77x = 88,184,296.59
  5. Step 5: Solve for x
    x = 88,184,296.59/13,220.77
  6. Step 6: Final answer
    x = 6,670.13

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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.