Home / 13,994.28-19,312.20-7,706.70

Finding the Fourth Proportional to 13,994.28, 19,312.20 and 7,706.70

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Solution

The fourth proportional to 13,994.28, 19,312.20 and 7,706.70 is: 10,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.28 : 19,312.20 = 7,706.70 : x
  2. Step 2: Convert to fraction form
    13,994.28/19,312.20 = 7,706.70/x
  3. Step 3: Cross multiply
    13,994.28x = 19,312.20 × 7,706.70
  4. Step 4: Simplify right side
    13,994.28x = 148,833,331.74
  5. Step 5: Solve for x
    x = 148,833,331.74/13,994.28
  6. Step 6: Final answer
    x = 10,635.30

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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.