Home / 14,355.30-19,805.73-8,688.23

Finding the Fourth Proportional to 14,355.30, 19,805.73 and 8,688.23

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Solution

The fourth proportional to 14,355.30, 19,805.73 and 8,688.23 is: 11,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.30 : 19,805.73 = 8,688.23 : x
  2. Step 2: Convert to fraction form
    14,355.30/19,805.73 = 8,688.23/x
  3. Step 3: Cross multiply
    14,355.30x = 19,805.73 × 8,688.23
  4. Step 4: Simplify right side
    14,355.30x = 172,076,737.56
  5. Step 5: Solve for x
    x = 172,076,737.56/14,355.30
  6. Step 6: Final answer
    x = 11,986.98

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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.