Home / 15,443.48-21,312.02-8,369.90

Finding the Fourth Proportional to 15,443.48, 21,312.02 and 8,369.90

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Solution

The fourth proportional to 15,443.48, 21,312.02 and 8,369.90 is: 11,550.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.48 : 21,312.02 = 8,369.90 : x
  2. Step 2: Convert to fraction form
    15,443.48/21,312.02 = 8,369.90/x
  3. Step 3: Cross multiply
    15,443.48x = 21,312.02 × 8,369.90
  4. Step 4: Simplify right side
    15,443.48x = 178,379,390.56
  5. Step 5: Solve for x
    x = 178,379,390.56/15,443.48
  6. Step 6: Final answer
    x = 11,550.47

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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.