Home / 18,394.72-25,384.84-10,011.28

Finding the Fourth Proportional to 18,394.72, 25,384.84 and 10,011.28

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Solution

The fourth proportional to 18,394.72, 25,384.84 and 10,011.28 is: 13,815.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.72 : 25,384.84 = 10,011.28 : x
  2. Step 2: Convert to fraction form
    18,394.72/25,384.84 = 10,011.28/x
  3. Step 3: Cross multiply
    18,394.72x = 25,384.84 × 10,011.28
  4. Step 4: Simplify right side
    18,394.72x = 254,134,741.00
  5. Step 5: Solve for x
    x = 254,134,741.00/18,394.72
  6. Step 6: Final answer
    x = 13,815.64

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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.