Home / 14,106.87-19,463.58-8,439.30

Finding the Fourth Proportional to 14,106.87, 19,463.58 and 8,439.30

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Solution

The fourth proportional to 14,106.87, 19,463.58 and 8,439.30 is: 11,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.87 : 19,463.58 = 8,439.30 : x
  2. Step 2: Convert to fraction form
    14,106.87/19,463.58 = 8,439.30/x
  3. Step 3: Cross multiply
    14,106.87x = 19,463.58 × 8,439.30
  4. Step 4: Simplify right side
    14,106.87x = 164,258,990.69
  5. Step 5: Solve for x
    x = 164,258,990.69/14,106.87
  6. Step 6: Final answer
    x = 11,643.90

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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.