Home / 19,668.63-27,142.83-10,715.94

Finding the Fourth Proportional to 19,668.63, 27,142.83 and 10,715.94

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Solution

The fourth proportional to 19,668.63, 27,142.83 and 10,715.94 is: 14,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.63 : 27,142.83 = 10,715.94 : x
  2. Step 2: Convert to fraction form
    19,668.63/27,142.83 = 10,715.94/x
  3. Step 3: Cross multiply
    19,668.63x = 27,142.83 × 10,715.94
  4. Step 4: Simplify right side
    19,668.63x = 290,860,937.71
  5. Step 5: Solve for x
    x = 290,860,937.71/19,668.63
  6. Step 6: Final answer
    x = 14,788.06

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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.