Home / 18,384.68-25,369.40-10,428.18

Finding the Fourth Proportional to 18,384.68, 25,369.40 and 10,428.18

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Solution

The fourth proportional to 18,384.68, 25,369.40 and 10,428.18 is: 14,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.68 : 25,369.40 = 10,428.18 : x
  2. Step 2: Convert to fraction form
    18,384.68/25,369.40 = 10,428.18/x
  3. Step 3: Cross multiply
    18,384.68x = 25,369.40 × 10,428.18
  4. Step 4: Simplify right side
    18,384.68x = 264,556,669.69
  5. Step 5: Solve for x
    x = 264,556,669.69/18,384.68
  6. Step 6: Final answer
    x = 14,390.06

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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.