Home / 7,721.96-10,656.73-4,888.30

Finding the Fourth Proportional to 7,721.96, 10,656.73 and 4,888.30

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Solution

The fourth proportional to 7,721.96, 10,656.73 and 4,888.30 is: 6,746.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.96 : 10,656.73 = 4,888.30 : x
  2. Step 2: Convert to fraction form
    7,721.96/10,656.73 = 4,888.30/x
  3. Step 3: Cross multiply
    7,721.96x = 10,656.73 × 4,888.30
  4. Step 4: Simplify right side
    7,721.96x = 52,093,293.26
  5. Step 5: Solve for x
    x = 52,093,293.26/7,721.96
  6. Step 6: Final answer
    x = 6,746.12

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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.