Home / 15,364.09-21,208.39-12,007.98

Finding the Fourth Proportional to 15,364.09, 21,208.39 and 12,007.98

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Solution

The fourth proportional to 15,364.09, 21,208.39 and 12,007.98 is: 16,575.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.09 : 21,208.39 = 12,007.98 : x
  2. Step 2: Convert to fraction form
    15,364.09/21,208.39 = 12,007.98/x
  3. Step 3: Cross multiply
    15,364.09x = 21,208.39 × 12,007.98
  4. Step 4: Simplify right side
    15,364.09x = 254,670,066.84
  5. Step 5: Solve for x
    x = 254,670,066.84/15,364.09
  6. Step 6: Final answer
    x = 16,575.67

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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.