Home / 18,827.28-25,985.34-10,869.03

Finding the Fourth Proportional to 18,827.28, 25,985.34 and 10,869.03

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Solution

The fourth proportional to 18,827.28, 25,985.34 and 10,869.03 is: 15,001.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.28 : 25,985.34 = 10,869.03 : x
  2. Step 2: Convert to fraction form
    18,827.28/25,985.34 = 10,869.03/x
  3. Step 3: Cross multiply
    18,827.28x = 25,985.34 × 10,869.03
  4. Step 4: Simplify right side
    18,827.28x = 282,435,440.02
  5. Step 5: Solve for x
    x = 282,435,440.02/18,827.28
  6. Step 6: Final answer
    x = 15,001.39

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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.