Home / 18,385.37-25,372.79-10,430.15

Finding the Fourth Proportional to 18,385.37, 25,372.79 and 10,430.15

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Solution

The fourth proportional to 18,385.37, 25,372.79 and 10,430.15 is: 14,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.37 : 25,372.79 = 10,430.15 : x
  2. Step 2: Convert to fraction form
    18,385.37/25,372.79 = 10,430.15/x
  3. Step 3: Cross multiply
    18,385.37x = 25,372.79 × 10,430.15
  4. Step 4: Simplify right side
    18,385.37x = 264,641,826.60
  5. Step 5: Solve for x
    x = 264,641,826.60/18,385.37
  6. Step 6: Final answer
    x = 14,394.16

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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.