Home / 13,272.17-18,316.35-7,607.86

Finding the Fourth Proportional to 13,272.17, 18,316.35 and 7,607.86

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Solution

The fourth proportional to 13,272.17, 18,316.35 and 7,607.86 is: 10,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.17 : 18,316.35 = 7,607.86 : x
  2. Step 2: Convert to fraction form
    13,272.17/18,316.35 = 7,607.86/x
  3. Step 3: Cross multiply
    13,272.17x = 18,316.35 × 7,607.86
  4. Step 4: Simplify right side
    13,272.17x = 139,348,096.89
  5. Step 5: Solve for x
    x = 139,348,096.89/13,272.17
  6. Step 6: Final answer
    x = 10,499.27

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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.