Home / 9,780.48-13,491.36-6,238.08

Finding the Fourth Proportional to 9,780.48, 13,491.36 and 6,238.08

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Solution

The fourth proportional to 9,780.48, 13,491.36 and 6,238.08 is: 8,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.48 : 13,491.36 = 6,238.08 : x
  2. Step 2: Convert to fraction form
    9,780.48/13,491.36 = 6,238.08/x
  3. Step 3: Cross multiply
    9,780.48x = 13,491.36 × 6,238.08
  4. Step 4: Simplify right side
    9,780.48x = 84,160,182.99
  5. Step 5: Solve for x
    x = 84,160,182.99/9,780.48
  6. Step 6: Final answer
    x = 8,604.91

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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.