Home / 14,480.62-19,972.95-13,289.45

Finding the Fourth Proportional to 14,480.62, 19,972.95 and 13,289.45

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Solution

The fourth proportional to 14,480.62, 19,972.95 and 13,289.45 is: 18,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.62 : 19,972.95 = 13,289.45 : x
  2. Step 2: Convert to fraction form
    14,480.62/19,972.95 = 13,289.45/x
  3. Step 3: Cross multiply
    14,480.62x = 19,972.95 × 13,289.45
  4. Step 4: Simplify right side
    14,480.62x = 265,429,520.38
  5. Step 5: Solve for x
    x = 265,429,520.38/14,480.62
  6. Step 6: Final answer
    x = 18,329.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.