Home / 14,302.90-19,736.18-7,929.43

Finding the Fourth Proportional to 14,302.90, 19,736.18 and 7,929.43

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Solution

The fourth proportional to 14,302.90, 19,736.18 and 7,929.43 is: 10,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,302.90 : 19,736.18 = 7,929.43 : x
  2. Step 2: Convert to fraction form
    14,302.90/19,736.18 = 7,929.43/x
  3. Step 3: Cross multiply
    14,302.90x = 19,736.18 × 7,929.43
  4. Step 4: Simplify right side
    14,302.90x = 156,496,653.91
  5. Step 5: Solve for x
    x = 156,496,653.91/14,302.90
  6. Step 6: Final answer
    x = 10,941.60

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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.