Home / 13,959.81-20,944.58-6,569.91

Finding the Fourth Proportional to 13,959.81, 20,944.58 and 6,569.91

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Solution

The fourth proportional to 13,959.81, 20,944.58 and 6,569.91 is: 9,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.81 : 20,944.58 = 6,569.91 : x
  2. Step 2: Convert to fraction form
    13,959.81/20,944.58 = 6,569.91/x
  3. Step 3: Cross multiply
    13,959.81x = 20,944.58 × 6,569.91
  4. Step 4: Simplify right side
    13,959.81x = 137,603,972.74
  5. Step 5: Solve for x
    x = 137,603,972.74/13,959.81
  6. Step 6: Final answer
    x = 9,857.15

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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.