Home / 18,513.64-25,549.40-10,130.14

Finding the Fourth Proportional to 18,513.64, 25,549.40 and 10,130.14

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Solution

The fourth proportional to 18,513.64, 25,549.40 and 10,130.14 is: 13,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.64 : 25,549.40 = 10,130.14 : x
  2. Step 2: Convert to fraction form
    18,513.64/25,549.40 = 10,130.14/x
  3. Step 3: Cross multiply
    18,513.64x = 25,549.40 × 10,130.14
  4. Step 4: Simplify right side
    18,513.64x = 258,818,998.92
  5. Step 5: Solve for x
    x = 258,818,998.92/18,513.64
  6. Step 6: Final answer
    x = 13,979.91

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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.