Home / 18,271.02-25,209.65-12,603.96

Finding the Fourth Proportional to 18,271.02, 25,209.65 and 12,603.96

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Solution

The fourth proportional to 18,271.02, 25,209.65 and 12,603.96 is: 17,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.02 : 25,209.65 = 12,603.96 : x
  2. Step 2: Convert to fraction form
    18,271.02/25,209.65 = 12,603.96/x
  3. Step 3: Cross multiply
    18,271.02x = 25,209.65 × 12,603.96
  4. Step 4: Simplify right side
    18,271.02x = 317,741,357.19
  5. Step 5: Solve for x
    x = 317,741,357.19/18,271.02
  6. Step 6: Final answer
    x = 17,390.46

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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.