Home / 9,342.09-13,988.40-7,705.94

Finding the Fourth Proportional to 9,342.09, 13,988.40 and 7,705.94

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Solution

The fourth proportional to 9,342.09, 13,988.40 and 7,705.94 is: 11,538.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.09 : 13,988.40 = 7,705.94 : x
  2. Step 2: Convert to fraction form
    9,342.09/13,988.40 = 7,705.94/x
  3. Step 3: Cross multiply
    9,342.09x = 13,988.40 × 7,705.94
  4. Step 4: Simplify right side
    9,342.09x = 107,793,701.15
  5. Step 5: Solve for x
    x = 107,793,701.15/9,342.09
  6. Step 6: Final answer
    x = 11,538.50

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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.