Home / 13,994.31-19,312.20-7,706.67

Finding the Fourth Proportional to 13,994.31, 19,312.20 and 7,706.67

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Solution

The fourth proportional to 13,994.31, 19,312.20 and 7,706.67 is: 10,635.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.31 : 19,312.20 = 7,706.67 : x
  2. Step 2: Convert to fraction form
    13,994.31/19,312.20 = 7,706.67/x
  3. Step 3: Cross multiply
    13,994.31x = 19,312.20 × 7,706.67
  4. Step 4: Simplify right side
    13,994.31x = 148,832,752.37
  5. Step 5: Solve for x
    x = 148,832,752.37/13,994.31
  6. Step 6: Final answer
    x = 10,635.23

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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.