Home / 12,406.23-18,591.12-9,271.53

Finding the Fourth Proportional to 12,406.23, 18,591.12 and 9,271.53

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Solution

The fourth proportional to 12,406.23, 18,591.12 and 9,271.53 is: 13,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.23 : 18,591.12 = 9,271.53 : x
  2. Step 2: Convert to fraction form
    12,406.23/18,591.12 = 9,271.53/x
  3. Step 3: Cross multiply
    12,406.23x = 18,591.12 × 9,271.53
  4. Step 4: Simplify right side
    12,406.23x = 172,368,126.81
  5. Step 5: Solve for x
    x = 172,368,126.81/12,406.23
  6. Step 6: Final answer
    x = 13,893.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.