Home / 18,731.65-25,847.81-10,347.61

Finding the Fourth Proportional to 18,731.65, 25,847.81 and 10,347.61

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Solution

The fourth proportional to 18,731.65, 25,847.81 and 10,347.61 is: 14,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.65 : 25,847.81 = 10,347.61 : x
  2. Step 2: Convert to fraction form
    18,731.65/25,847.81 = 10,347.61/x
  3. Step 3: Cross multiply
    18,731.65x = 25,847.81 × 10,347.61
  4. Step 4: Simplify right side
    18,731.65x = 267,463,005.50
  5. Step 5: Solve for x
    x = 267,463,005.50/18,731.65
  6. Step 6: Final answer
    x = 14,278.67

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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.