Home / 13,240.72-19,830.82-6,320.08

Finding the Fourth Proportional to 13,240.72, 19,830.82 and 6,320.08

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Solution

The fourth proportional to 13,240.72, 19,830.82 and 6,320.08 is: 9,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.72 : 19,830.82 = 6,320.08 : x
  2. Step 2: Convert to fraction form
    13,240.72/19,830.82 = 6,320.08/x
  3. Step 3: Cross multiply
    13,240.72x = 19,830.82 × 6,320.08
  4. Step 4: Simplify right side
    13,240.72x = 125,332,368.87
  5. Step 5: Solve for x
    x = 125,332,368.87/13,240.72
  6. Step 6: Final answer
    x = 9,465.68

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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.