Home / 9,898.84-13,660.40-5,422.66

Finding the Fourth Proportional to 9,898.84, 13,660.40 and 5,422.66

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Solution

The fourth proportional to 9,898.84, 13,660.40 and 5,422.66 is: 7,483.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.84 : 13,660.40 = 5,422.66 : x
  2. Step 2: Convert to fraction form
    9,898.84/13,660.40 = 5,422.66/x
  3. Step 3: Cross multiply
    9,898.84x = 13,660.40 × 5,422.66
  4. Step 4: Simplify right side
    9,898.84x = 74,075,704.66
  5. Step 5: Solve for x
    x = 74,075,704.66/9,898.84
  6. Step 6: Final answer
    x = 7,483.27

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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.