Home / 10,865.12-14,990.42-7,093.67

Finding the Fourth Proportional to 10,865.12, 14,990.42 and 7,093.67

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Solution

The fourth proportional to 10,865.12, 14,990.42 and 7,093.67 is: 9,787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.12 : 14,990.42 = 7,093.67 : x
  2. Step 2: Convert to fraction form
    10,865.12/14,990.42 = 7,093.67/x
  3. Step 3: Cross multiply
    10,865.12x = 14,990.42 × 7,093.67
  4. Step 4: Simplify right side
    10,865.12x = 106,336,982.22
  5. Step 5: Solve for x
    x = 106,336,982.22/10,865.12
  6. Step 6: Final answer
    x = 9,787.01

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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.