Home / 7,718.49-10,651.56-4,887.08

Finding the Fourth Proportional to 7,718.49, 10,651.56 and 4,887.08

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Solution

The fourth proportional to 7,718.49, 10,651.56 and 4,887.08 is: 6,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.49 : 10,651.56 = 4,887.08 : x
  2. Step 2: Convert to fraction form
    7,718.49/10,651.56 = 4,887.08/x
  3. Step 3: Cross multiply
    7,718.49x = 10,651.56 × 4,887.08
  4. Step 4: Simplify right side
    7,718.49x = 52,054,972.59
  5. Step 5: Solve for x
    x = 52,054,972.59/7,718.49
  6. Step 6: Final answer
    x = 6,744.19

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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.