Home / 7,800.83-11,686.44-4,631.58

Finding the Fourth Proportional to 7,800.83, 11,686.44 and 4,631.58

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Solution

The fourth proportional to 7,800.83, 11,686.44 and 4,631.58 is: 6,938.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.83 : 11,686.44 = 4,631.58 : x
  2. Step 2: Convert to fraction form
    7,800.83/11,686.44 = 4,631.58/x
  3. Step 3: Cross multiply
    7,800.83x = 11,686.44 × 4,631.58
  4. Step 4: Simplify right side
    7,800.83x = 54,126,681.78
  5. Step 5: Solve for x
    x = 54,126,681.78/7,800.83
  6. Step 6: Final answer
    x = 6,938.58

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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.