Home / 13,384.40-20,077.80-4,499.24

Finding the Fourth Proportional to 13,384.40, 20,077.80 and 4,499.24

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Solution

The fourth proportional to 13,384.40, 20,077.80 and 4,499.24 is: 6,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.40 : 20,077.80 = 4,499.24 : x
  2. Step 2: Convert to fraction form
    13,384.40/20,077.80 = 4,499.24/x
  3. Step 3: Cross multiply
    13,384.40x = 20,077.80 × 4,499.24
  4. Step 4: Simplify right side
    13,384.40x = 90,334,840.87
  5. Step 5: Solve for x
    x = 90,334,840.87/13,384.40
  6. Step 6: Final answer
    x = 6,749.26

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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.