Home / 18,478.62-25,501.67-10,521.54

Finding the Fourth Proportional to 18,478.62, 25,501.67 and 10,521.54

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Solution

The fourth proportional to 18,478.62, 25,501.67 and 10,521.54 is: 14,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.62 : 25,501.67 = 10,521.54 : x
  2. Step 2: Convert to fraction form
    18,478.62/25,501.67 = 10,521.54/x
  3. Step 3: Cross multiply
    18,478.62x = 25,501.67 × 10,521.54
  4. Step 4: Simplify right side
    18,478.62x = 268,316,840.97
  5. Step 5: Solve for x
    x = 268,316,840.97/18,478.62
  6. Step 6: Final answer
    x = 14,520.39

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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.