Home / 9,886.32-13,638.54-5,692.14

Finding the Fourth Proportional to 9,886.32, 13,638.54 and 5,692.14

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Solution

The fourth proportional to 9,886.32, 13,638.54 and 5,692.14 is: 7,852.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.32 : 13,638.54 = 5,692.14 : x
  2. Step 2: Convert to fraction form
    9,886.32/13,638.54 = 5,692.14/x
  3. Step 3: Cross multiply
    9,886.32x = 13,638.54 × 5,692.14
  4. Step 4: Simplify right side
    9,886.32x = 77,632,479.08
  5. Step 5: Solve for x
    x = 77,632,479.08/9,886.32
  6. Step 6: Final answer
    x = 7,852.52

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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.