Home / 13,047.91-19,567.77-4,280.77

Finding the Fourth Proportional to 13,047.91, 19,567.77 and 4,280.77

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Solution

The fourth proportional to 13,047.91, 19,567.77 and 4,280.77 is: 6,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.91 : 19,567.77 = 4,280.77 : x
  2. Step 2: Convert to fraction form
    13,047.91/19,567.77 = 4,280.77/x
  3. Step 3: Cross multiply
    13,047.91x = 19,567.77 × 4,280.77
  4. Step 4: Simplify right side
    13,047.91x = 83,765,122.78
  5. Step 5: Solve for x
    x = 83,765,122.78/13,047.91
  6. Step 6: Final answer
    x = 6,419.81

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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.