Home / 11,118.19-15,351.12-6,875.07

Finding the Fourth Proportional to 11,118.19, 15,351.12 and 6,875.07

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Solution

The fourth proportional to 11,118.19, 15,351.12 and 6,875.07 is: 9,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.19 : 15,351.12 = 6,875.07 : x
  2. Step 2: Convert to fraction form
    11,118.19/15,351.12 = 6,875.07/x
  3. Step 3: Cross multiply
    11,118.19x = 15,351.12 × 6,875.07
  4. Step 4: Simplify right side
    11,118.19x = 105,539,947.82
  5. Step 5: Solve for x
    x = 105,539,947.82/11,118.19
  6. Step 6: Final answer
    x = 9,492.55

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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.