Home / 9,342.51-12,893.57-6,980.55

Finding the Fourth Proportional to 9,342.51, 12,893.57 and 6,980.55

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Solution

The fourth proportional to 9,342.51, 12,893.57 and 6,980.55 is: 9,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.51 : 12,893.57 = 6,980.55 : x
  2. Step 2: Convert to fraction form
    9,342.51/12,893.57 = 6,980.55/x
  3. Step 3: Cross multiply
    9,342.51x = 12,893.57 × 6,980.55
  4. Step 4: Simplify right side
    9,342.51x = 90,004,210.06
  5. Step 5: Solve for x
    x = 90,004,210.06/9,342.51
  6. Step 6: Final answer
    x = 9,633.84

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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.