Home / 9,883.14-13,638.83-5,407.08

Finding the Fourth Proportional to 9,883.14, 13,638.83 and 5,407.08

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Solution

The fourth proportional to 9,883.14, 13,638.83 and 5,407.08 is: 7,461.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.14 : 13,638.83 = 5,407.08 : x
  2. Step 2: Convert to fraction form
    9,883.14/13,638.83 = 5,407.08/x
  3. Step 3: Cross multiply
    9,883.14x = 13,638.83 × 5,407.08
  4. Step 4: Simplify right side
    9,883.14x = 73,746,235.51
  5. Step 5: Solve for x
    x = 73,746,235.51/9,883.14
  6. Step 6: Final answer
    x = 7,461.82

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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.