Home / 14,020.04-19,349.88-8,431.04

Finding the Fourth Proportional to 14,020.04, 19,349.88 and 8,431.04

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Solution

The fourth proportional to 14,020.04, 19,349.88 and 8,431.04 is: 11,636.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.04 : 19,349.88 = 8,431.04 : x
  2. Step 2: Convert to fraction form
    14,020.04/19,349.88 = 8,431.04/x
  3. Step 3: Cross multiply
    14,020.04x = 19,349.88 × 8,431.04
  4. Step 4: Simplify right side
    14,020.04x = 163,139,612.28
  5. Step 5: Solve for x
    x = 163,139,612.28/14,020.04
  6. Step 6: Final answer
    x = 11,636.17

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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.