Home / 13,021.08-19,533.70-5,627.78

Finding the Fourth Proportional to 13,021.08, 19,533.70 and 5,627.78

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Solution

The fourth proportional to 13,021.08, 19,533.70 and 5,627.78 is: 8,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.08 : 19,533.70 = 5,627.78 : x
  2. Step 2: Convert to fraction form
    13,021.08/19,533.70 = 5,627.78/x
  3. Step 3: Cross multiply
    13,021.08x = 19,533.70 × 5,627.78
  4. Step 4: Simplify right side
    13,021.08x = 109,931,366.19
  5. Step 5: Solve for x
    x = 109,931,366.19/13,021.08
  6. Step 6: Final answer
    x = 8,442.57

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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.