Home / 15,668.84-21,606.27-12,814.67

Finding the Fourth Proportional to 15,668.84, 21,606.27 and 12,814.67

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Solution

The fourth proportional to 15,668.84, 21,606.27 and 12,814.67 is: 17,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.84 : 21,606.27 = 12,814.67 : x
  2. Step 2: Convert to fraction form
    15,668.84/21,606.27 = 12,814.67/x
  3. Step 3: Cross multiply
    15,668.84x = 21,606.27 × 12,814.67
  4. Step 4: Simplify right side
    15,668.84x = 276,877,219.98
  5. Step 5: Solve for x
    x = 276,877,219.98/15,668.84
  6. Step 6: Final answer
    x = 17,670.56

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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.