Home / 9,821.99-13,554.15-5,345.84

Finding the Fourth Proportional to 9,821.99, 13,554.15 and 5,345.84

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Solution

The fourth proportional to 9,821.99, 13,554.15 and 5,345.84 is: 7,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.99 : 13,554.15 = 5,345.84 : x
  2. Step 2: Convert to fraction form
    9,821.99/13,554.15 = 5,345.84/x
  3. Step 3: Cross multiply
    9,821.99x = 13,554.15 × 5,345.84
  4. Step 4: Simplify right side
    9,821.99x = 72,458,317.24
  5. Step 5: Solve for x
    x = 72,458,317.24/9,821.99
  6. Step 6: Final answer
    x = 7,377.15

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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.