Home / 18,345.54-25,316.94-10,389.32

Finding the Fourth Proportional to 18,345.54, 25,316.94 and 10,389.32

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Solution

The fourth proportional to 18,345.54, 25,316.94 and 10,389.32 is: 14,337.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.54 : 25,316.94 = 10,389.32 : x
  2. Step 2: Convert to fraction form
    18,345.54/25,316.94 = 10,389.32/x
  3. Step 3: Cross multiply
    18,345.54x = 25,316.94 × 10,389.32
  4. Step 4: Simplify right side
    18,345.54x = 263,025,664.50
  5. Step 5: Solve for x
    x = 263,025,664.50/18,345.54
  6. Step 6: Final answer
    x = 14,337.31

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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.