Home / 7,215.89-10,830.65-4,447.98

Finding the Fourth Proportional to 7,215.89, 10,830.65 and 4,447.98

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Solution

The fourth proportional to 7,215.89, 10,830.65 and 4,447.98 is: 6,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.89 : 10,830.65 = 4,447.98 : x
  2. Step 2: Convert to fraction form
    7,215.89/10,830.65 = 4,447.98/x
  3. Step 3: Cross multiply
    7,215.89x = 10,830.65 × 4,447.98
  4. Step 4: Simplify right side
    7,215.89x = 48,174,492.35
  5. Step 5: Solve for x
    x = 48,174,492.35/7,215.89
  6. Step 6: Final answer
    x = 6,676.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.