Home / 9,855.04-13,599.76-5,378.88

Finding the Fourth Proportional to 9,855.04, 13,599.76 and 5,378.88

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Solution

The fourth proportional to 9,855.04, 13,599.76 and 5,378.88 is: 7,422.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.04 : 13,599.76 = 5,378.88 : x
  2. Step 2: Convert to fraction form
    9,855.04/13,599.76 = 5,378.88/x
  3. Step 3: Cross multiply
    9,855.04x = 13,599.76 × 5,378.88
  4. Step 4: Simplify right side
    9,855.04x = 73,151,477.07
  5. Step 5: Solve for x
    x = 73,151,477.07/9,855.04
  6. Step 6: Final answer
    x = 7,422.75

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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.