Home / 18,688.02-25,788.96-10,190.39

Finding the Fourth Proportional to 18,688.02, 25,788.96 and 10,190.39

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Solution

The fourth proportional to 18,688.02, 25,788.96 and 10,190.39 is: 14,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.02 : 25,788.96 = 10,190.39 : x
  2. Step 2: Convert to fraction form
    18,688.02/25,788.96 = 10,190.39/x
  3. Step 3: Cross multiply
    18,688.02x = 25,788.96 × 10,190.39
  4. Step 4: Simplify right side
    18,688.02x = 262,799,431.15
  5. Step 5: Solve for x
    x = 262,799,431.15/18,688.02
  6. Step 6: Final answer
    x = 14,062.45

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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.