Home / 19,668.65-27,141.75-10,715.63

Finding the Fourth Proportional to 19,668.65, 27,141.75 and 10,715.63

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Solution

The fourth proportional to 19,668.65, 27,141.75 and 10,715.63 is: 14,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.65 : 27,141.75 = 10,715.63 : x
  2. Step 2: Convert to fraction form
    19,668.65/27,141.75 = 10,715.63/x
  3. Step 3: Cross multiply
    19,668.65x = 27,141.75 × 10,715.63
  4. Step 4: Simplify right side
    19,668.65x = 290,840,814.84
  5. Step 5: Solve for x
    x = 290,840,814.84/19,668.65
  6. Step 6: Final answer
    x = 14,787.03

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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.