Home / 9,810.45-13,538.34-5,779.62

Finding the Fourth Proportional to 9,810.45, 13,538.34 and 5,779.62

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Solution

The fourth proportional to 9,810.45, 13,538.34 and 5,779.62 is: 7,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,810.45 : 13,538.34 = 5,779.62 : x
  2. Step 2: Convert to fraction form
    9,810.45/13,538.34 = 5,779.62/x
  3. Step 3: Cross multiply
    9,810.45x = 13,538.34 × 5,779.62
  4. Step 4: Simplify right side
    9,810.45x = 78,246,460.63
  5. Step 5: Solve for x
    x = 78,246,460.63/9,810.45
  6. Step 6: Final answer
    x = 7,975.83

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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.