Home / 18,384.64-25,371.84-10,000.96

Finding the Fourth Proportional to 18,384.64, 25,371.84 and 10,000.96

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Solution

The fourth proportional to 18,384.64, 25,371.84 and 10,000.96 is: 13,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.64 : 25,371.84 = 10,000.96 : x
  2. Step 2: Convert to fraction form
    18,384.64/25,371.84 = 10,000.96/x
  3. Step 3: Cross multiply
    18,384.64x = 25,371.84 × 10,000.96
  4. Step 4: Simplify right side
    18,384.64x = 253,742,756.97
  5. Step 5: Solve for x
    x = 253,742,756.97/18,384.64
  6. Step 6: Final answer
    x = 13,801.89

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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.