Home / 9,928.96-14,897.30-4,378.39

Finding the Fourth Proportional to 9,928.96, 14,897.30 and 4,378.39

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Solution

The fourth proportional to 9,928.96, 14,897.30 and 4,378.39 is: 6,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.96 : 14,897.30 = 4,378.39 : x
  2. Step 2: Convert to fraction form
    9,928.96/14,897.30 = 4,378.39/x
  3. Step 3: Cross multiply
    9,928.96x = 14,897.30 × 4,378.39
  4. Step 4: Simplify right side
    9,928.96x = 65,226,130.21
  5. Step 5: Solve for x
    x = 65,226,130.21/9,928.96
  6. Step 6: Final answer
    x = 6,569.28

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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.