Home / 14,347.86-21,520.57-4,985.48

Finding the Fourth Proportional to 14,347.86, 21,520.57 and 4,985.48

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Solution

The fourth proportional to 14,347.86, 21,520.57 and 4,985.48 is: 7,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.86 : 21,520.57 = 4,985.48 : x
  2. Step 2: Convert to fraction form
    14,347.86/21,520.57 = 4,985.48/x
  3. Step 3: Cross multiply
    14,347.86x = 21,520.57 × 4,985.48
  4. Step 4: Simplify right side
    14,347.86x = 107,290,371.32
  5. Step 5: Solve for x
    x = 107,290,371.32/14,347.86
  6. Step 6: Final answer
    x = 7,477.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.