Home / 18,685.60-25,795.60-12,316.36

Finding the Fourth Proportional to 18,685.60, 25,795.60 and 12,316.36

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Solution

The fourth proportional to 18,685.60, 25,795.60 and 12,316.36 is: 17,002.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.60 : 25,795.60 = 12,316.36 : x
  2. Step 2: Convert to fraction form
    18,685.60/25,795.60 = 12,316.36/x
  3. Step 3: Cross multiply
    18,685.60x = 25,795.60 × 12,316.36
  4. Step 4: Simplify right side
    18,685.60x = 317,707,896.02
  5. Step 5: Solve for x
    x = 317,707,896.02/18,685.60
  6. Step 6: Final answer
    x = 17,002.82

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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.