Home / 15,735.51-21,718.26-9,771.08

Finding the Fourth Proportional to 15,735.51, 21,718.26 and 9,771.08

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Solution

The fourth proportional to 15,735.51, 21,718.26 and 9,771.08 is: 13,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,735.51 : 21,718.26 = 9,771.08 : x
  2. Step 2: Convert to fraction form
    15,735.51/21,718.26 = 9,771.08/x
  3. Step 3: Cross multiply
    15,735.51x = 21,718.26 × 9,771.08
  4. Step 4: Simplify right side
    15,735.51x = 212,210,747.33
  5. Step 5: Solve for x
    x = 212,210,747.33/15,735.51
  6. Step 6: Final answer
    x = 13,486.11

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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.