Home / 13,668.93-18,875.57-10,305.99

Finding the Fourth Proportional to 13,668.93, 18,875.57 and 10,305.99

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Solution

The fourth proportional to 13,668.93, 18,875.57 and 10,305.99 is: 14,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.93 : 18,875.57 = 10,305.99 : x
  2. Step 2: Convert to fraction form
    13,668.93/18,875.57 = 10,305.99/x
  3. Step 3: Cross multiply
    13,668.93x = 18,875.57 × 10,305.99
  4. Step 4: Simplify right side
    13,668.93x = 194,531,384.13
  5. Step 5: Solve for x
    x = 194,531,384.13/13,668.93
  6. Step 6: Final answer
    x = 14,231.65

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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.