Home / 18,513.50-25,549.18-10,130.54

Finding the Fourth Proportional to 18,513.50, 25,549.18 and 10,130.54

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Solution

The fourth proportional to 18,513.50, 25,549.18 and 10,130.54 is: 13,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.50 : 25,549.18 = 10,130.54 : x
  2. Step 2: Convert to fraction form
    18,513.50/25,549.18 = 10,130.54/x
  3. Step 3: Cross multiply
    18,513.50x = 25,549.18 × 10,130.54
  4. Step 4: Simplify right side
    18,513.50x = 258,826,989.96
  5. Step 5: Solve for x
    x = 258,826,989.96/18,513.50
  6. Step 6: Final answer
    x = 13,980.45

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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.