Home / 9,780.95-13,497.59-5,304.62

Finding the Fourth Proportional to 9,780.95, 13,497.59 and 5,304.62

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Solution

The fourth proportional to 9,780.95, 13,497.59 and 5,304.62 is: 7,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.95 : 13,497.59 = 5,304.62 : x
  2. Step 2: Convert to fraction form
    9,780.95/13,497.59 = 5,304.62/x
  3. Step 3: Cross multiply
    9,780.95x = 13,497.59 × 5,304.62
  4. Step 4: Simplify right side
    9,780.95x = 71,599,491.85
  5. Step 5: Solve for x
    x = 71,599,491.85/9,780.95
  6. Step 6: Final answer
    x = 7,320.30

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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.