Home / 18,347.34-25,319.67-10,389.54

Finding the Fourth Proportional to 18,347.34, 25,319.67 and 10,389.54

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Solution

The fourth proportional to 18,347.34, 25,319.67 and 10,389.54 is: 14,337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.34 : 25,319.67 = 10,389.54 : x
  2. Step 2: Convert to fraction form
    18,347.34/25,319.67 = 10,389.54/x
  3. Step 3: Cross multiply
    18,347.34x = 25,319.67 × 10,389.54
  4. Step 4: Simplify right side
    18,347.34x = 263,059,724.25
  5. Step 5: Solve for x
    x = 263,059,724.25/18,347.34
  6. Step 6: Final answer
    x = 14,337.76

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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.