Home / 13,021.52-19,529.18-5,621.93

Finding the Fourth Proportional to 13,021.52, 19,529.18 and 5,621.93

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Solution

The fourth proportional to 13,021.52, 19,529.18 and 5,621.93 is: 8,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.52 : 19,529.18 = 5,621.93 : x
  2. Step 2: Convert to fraction form
    13,021.52/19,529.18 = 5,621.93/x
  3. Step 3: Cross multiply
    13,021.52x = 19,529.18 × 5,621.93
  4. Step 4: Simplify right side
    13,021.52x = 109,791,557.16
  5. Step 5: Solve for x
    x = 109,791,557.16/13,021.52
  6. Step 6: Final answer
    x = 8,431.55

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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.