Home / 14,337.75-21,509.69-4,978.06

Finding the Fourth Proportional to 14,337.75, 21,509.69 and 4,978.06

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Solution

The fourth proportional to 14,337.75, 21,509.69 and 4,978.06 is: 7,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,337.75 : 21,509.69 = 4,978.06 : x
  2. Step 2: Convert to fraction form
    14,337.75/21,509.69 = 4,978.06/x
  3. Step 3: Cross multiply
    14,337.75x = 21,509.69 × 4,978.06
  4. Step 4: Simplify right side
    14,337.75x = 107,076,527.40
  5. Step 5: Solve for x
    x = 107,076,527.40/14,337.75
  6. Step 6: Final answer
    x = 7,468.15

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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.