Home / 13,271.01-18,315.77-12,149.93

Finding the Fourth Proportional to 13,271.01, 18,315.77 and 12,149.93

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Solution

The fourth proportional to 13,271.01, 18,315.77 and 12,149.93 is: 16,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.01 : 18,315.77 = 12,149.93 : x
  2. Step 2: Convert to fraction form
    13,271.01/18,315.77 = 12,149.93/x
  3. Step 3: Cross multiply
    13,271.01x = 18,315.77 × 12,149.93
  4. Step 4: Simplify right side
    13,271.01x = 222,535,171.07
  5. Step 5: Solve for x
    x = 222,535,171.07/13,271.01
  6. Step 6: Final answer
    x = 16,768.52

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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.