Home / 9,780.60-14,673.63-3,211.40

Finding the Fourth Proportional to 9,780.60, 14,673.63 and 3,211.40

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Solution

The fourth proportional to 9,780.60, 14,673.63 and 3,211.40 is: 4,818.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.60 : 14,673.63 = 3,211.40 : x
  2. Step 2: Convert to fraction form
    9,780.60/14,673.63 = 3,211.40/x
  3. Step 3: Cross multiply
    9,780.60x = 14,673.63 × 3,211.40
  4. Step 4: Simplify right side
    9,780.60x = 47,122,895.38
  5. Step 5: Solve for x
    x = 47,122,895.38/9,780.60
  6. Step 6: Final answer
    x = 4,818.00

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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.