Home / 18,615.12-25,688.52-10,232.40

Finding the Fourth Proportional to 18,615.12, 25,688.52 and 10,232.40

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Solution

The fourth proportional to 18,615.12, 25,688.52 and 10,232.40 is: 14,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.12 : 25,688.52 = 10,232.40 : x
  2. Step 2: Convert to fraction form
    18,615.12/25,688.52 = 10,232.40/x
  3. Step 3: Cross multiply
    18,615.12x = 25,688.52 × 10,232.40
  4. Step 4: Simplify right side
    18,615.12x = 262,855,212.05
  5. Step 5: Solve for x
    x = 262,855,212.05/18,615.12
  6. Step 6: Final answer
    x = 14,120.52

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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.