Home / 13,271.90-18,307.60-8,295.26

Finding the Fourth Proportional to 13,271.90, 18,307.60 and 8,295.26

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Solution

The fourth proportional to 13,271.90, 18,307.60 and 8,295.26 is: 11,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.90 : 18,307.60 = 8,295.26 : x
  2. Step 2: Convert to fraction form
    13,271.90/18,307.60 = 8,295.26/x
  3. Step 3: Cross multiply
    13,271.90x = 18,307.60 × 8,295.26
  4. Step 4: Simplify right side
    13,271.90x = 151,866,301.98
  5. Step 5: Solve for x
    x = 151,866,301.98/13,271.90
  6. Step 6: Final answer
    x = 11,442.69

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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.