Home / 9,767.09-13,478.48-5,290.57

Finding the Fourth Proportional to 9,767.09, 13,478.48 and 5,290.57

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Solution

The fourth proportional to 9,767.09, 13,478.48 and 5,290.57 is: 7,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.09 : 13,478.48 = 5,290.57 : x
  2. Step 2: Convert to fraction form
    9,767.09/13,478.48 = 5,290.57/x
  3. Step 3: Cross multiply
    9,767.09x = 13,478.48 × 5,290.57
  4. Step 4: Simplify right side
    9,767.09x = 71,308,852.17
  5. Step 5: Solve for x
    x = 71,308,852.17/9,767.09
  6. Step 6: Final answer
    x = 7,300.93

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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.