Home / 18,810.56-25,958.19-10,312.70

Finding the Fourth Proportional to 18,810.56, 25,958.19 and 10,312.70

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Solution

The fourth proportional to 18,810.56, 25,958.19 and 10,312.70 is: 14,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.56 : 25,958.19 = 10,312.70 : x
  2. Step 2: Convert to fraction form
    18,810.56/25,958.19 = 10,312.70/x
  3. Step 3: Cross multiply
    18,810.56x = 25,958.19 × 10,312.70
  4. Step 4: Simplify right side
    18,810.56x = 267,698,896.22
  5. Step 5: Solve for x
    x = 267,698,896.22/18,810.56
  6. Step 6: Final answer
    x = 14,231.31

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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.