Home / 15,706.15-21,679.54-10,056.12

Finding the Fourth Proportional to 15,706.15, 21,679.54 and 10,056.12

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Solution

The fourth proportional to 15,706.15, 21,679.54 and 10,056.12 is: 13,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.15 : 21,679.54 = 10,056.12 : x
  2. Step 2: Convert to fraction form
    15,706.15/21,679.54 = 10,056.12/x
  3. Step 3: Cross multiply
    15,706.15x = 21,679.54 × 10,056.12
  4. Step 4: Simplify right side
    15,706.15x = 218,011,949.35
  5. Step 5: Solve for x
    x = 218,011,949.35/15,706.15
  6. Step 6: Final answer
    x = 13,880.67

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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.