Home / 9,898.93-13,660.60-5,423.09

Finding the Fourth Proportional to 9,898.93, 13,660.60 and 5,423.09

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Solution

The fourth proportional to 9,898.93, 13,660.60 and 5,423.09 is: 7,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.93 : 13,660.60 = 5,423.09 : x
  2. Step 2: Convert to fraction form
    9,898.93/13,660.60 = 5,423.09/x
  3. Step 3: Cross multiply
    9,898.93x = 13,660.60 × 5,423.09
  4. Step 4: Simplify right side
    9,898.93x = 74,082,706.82
  5. Step 5: Solve for x
    x = 74,082,706.82/9,898.93
  6. Step 6: Final answer
    x = 7,483.91

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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.