Home / 9,780.48-13,497.84-5,801.76

Finding the Fourth Proportional to 9,780.48, 13,497.84 and 5,801.76

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Solution

The fourth proportional to 9,780.48, 13,497.84 and 5,801.76 is: 8,006.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.48 : 13,497.84 = 5,801.76 : x
  2. Step 2: Convert to fraction form
    9,780.48/13,497.84 = 5,801.76/x
  3. Step 3: Cross multiply
    9,780.48x = 13,497.84 × 5,801.76
  4. Step 4: Simplify right side
    9,780.48x = 78,311,228.20
  5. Step 5: Solve for x
    x = 78,311,228.20/9,780.48
  6. Step 6: Final answer
    x = 8,006.89

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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.