Home / 11,070.84-15,279.12-6,822.72

Finding the Fourth Proportional to 11,070.84, 15,279.12 and 6,822.72

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Solution

The fourth proportional to 11,070.84, 15,279.12 and 6,822.72 is: 9,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,070.84 : 15,279.12 = 6,822.72 : x
  2. Step 2: Convert to fraction form
    11,070.84/15,279.12 = 6,822.72/x
  3. Step 3: Cross multiply
    11,070.84x = 15,279.12 × 6,822.72
  4. Step 4: Simplify right side
    11,070.84x = 104,245,157.61
  5. Step 5: Solve for x
    x = 104,245,157.61/11,070.84
  6. Step 6: Final answer
    x = 9,416.19

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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.