Home / 13,280.01-18,327.08-7,311.61

Finding the Fourth Proportional to 13,280.01, 18,327.08 and 7,311.61

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Solution

The fourth proportional to 13,280.01, 18,327.08 and 7,311.61 is: 10,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.01 : 18,327.08 = 7,311.61 : x
  2. Step 2: Convert to fraction form
    13,280.01/18,327.08 = 7,311.61/x
  3. Step 3: Cross multiply
    13,280.01x = 18,327.08 × 7,311.61
  4. Step 4: Simplify right side
    13,280.01x = 134,000,461.40
  5. Step 5: Solve for x
    x = 134,000,461.40/13,280.01
  6. Step 6: Final answer
    x = 10,090.39

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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.