Home / 9,883.10-13,639.00-5,406.75

Finding the Fourth Proportional to 9,883.10, 13,639.00 and 5,406.75

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Solution

The fourth proportional to 9,883.10, 13,639.00 and 5,406.75 is: 7,461.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.10 : 13,639.00 = 5,406.75 : x
  2. Step 2: Convert to fraction form
    9,883.10/13,639.00 = 5,406.75/x
  3. Step 3: Cross multiply
    9,883.10x = 13,639.00 × 5,406.75
  4. Step 4: Simplify right side
    9,883.10x = 73,742,670.01
  5. Step 5: Solve for x
    x = 73,742,670.01/9,883.10
  6. Step 6: Final answer
    x = 7,461.49

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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.