Home / 13,371.03-18,455.72-8,897.40

Finding the Fourth Proportional to 13,371.03, 18,455.72 and 8,897.40

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Solution

The fourth proportional to 13,371.03, 18,455.72 and 8,897.40 is: 12,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.03 : 18,455.72 = 8,897.40 : x
  2. Step 2: Convert to fraction form
    13,371.03/18,455.72 = 8,897.40/x
  3. Step 3: Cross multiply
    13,371.03x = 18,455.72 × 8,897.40
  4. Step 4: Simplify right side
    13,371.03x = 164,207,878.64
  5. Step 5: Solve for x
    x = 164,207,878.64/13,371.03
  6. Step 6: Final answer
    x = 12,280.87

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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.