Home / 18,428.69-25,429.02-10,875.33

Finding the Fourth Proportional to 18,428.69, 25,429.02 and 10,875.33

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Solution

The fourth proportional to 18,428.69, 25,429.02 and 10,875.33 is: 15,006.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.69 : 25,429.02 = 10,875.33 : x
  2. Step 2: Convert to fraction form
    18,428.69/25,429.02 = 10,875.33/x
  3. Step 3: Cross multiply
    18,428.69x = 25,429.02 × 10,875.33
  4. Step 4: Simplify right side
    18,428.69x = 276,548,984.08
  5. Step 5: Solve for x
    x = 276,548,984.08/18,428.69
  6. Step 6: Final answer
    x = 15,006.44

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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.