Home / 13,245.53-19,756.71-12,326.99

Finding the Fourth Proportional to 13,245.53, 19,756.71 and 12,326.99

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Solution

The fourth proportional to 13,245.53, 19,756.71 and 12,326.99 is: 18,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.53 : 19,756.71 = 12,326.99 : x
  2. Step 2: Convert to fraction form
    13,245.53/19,756.71 = 12,326.99/x
  3. Step 3: Cross multiply
    13,245.53x = 19,756.71 × 12,326.99
  4. Step 4: Simplify right side
    13,245.53x = 243,540,667.82
  5. Step 5: Solve for x
    x = 243,540,667.82/13,245.53
  6. Step 6: Final answer
    x = 18,386.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.