Home / 12,913.64-19,376.86-5,986.92

Finding the Fourth Proportional to 12,913.64, 19,376.86 and 5,986.92

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Solution

The fourth proportional to 12,913.64, 19,376.86 and 5,986.92 is: 8,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.64 : 19,376.86 = 5,986.92 : x
  2. Step 2: Convert to fraction form
    12,913.64/19,376.86 = 5,986.92/x
  3. Step 3: Cross multiply
    12,913.64x = 19,376.86 × 5,986.92
  4. Step 4: Simplify right side
    12,913.64x = 116,007,710.67
  5. Step 5: Solve for x
    x = 116,007,710.67/12,913.64
  6. Step 6: Final answer
    x = 8,983.35

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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.