Home / 13,271.22-18,308.16-8,557.02

Finding the Fourth Proportional to 13,271.22, 18,308.16 and 8,557.02

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Solution

The fourth proportional to 13,271.22, 18,308.16 and 8,557.02 is: 11,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.22 : 18,308.16 = 8,557.02 : x
  2. Step 2: Convert to fraction form
    13,271.22/18,308.16 = 8,557.02/x
  3. Step 3: Cross multiply
    13,271.22x = 18,308.16 × 8,557.02
  4. Step 4: Simplify right side
    13,271.22x = 156,663,291.28
  5. Step 5: Solve for x
    x = 156,663,291.28/13,271.22
  6. Step 6: Final answer
    x = 11,804.74

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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.