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Finding the Fourth Proportional to 6,717.84, 10,130.50 and 6,625.50

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Solution

The fourth proportional to 6,717.84, 10,130.50 and 6,625.50 is: 9,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.84 : 10,130.50 = 6,625.50 : x
  2. Step 2: Convert to fraction form
    6,717.84/10,130.50 = 6,625.50/x
  3. Step 3: Cross multiply
    6,717.84x = 10,130.50 × 6,625.50
  4. Step 4: Simplify right side
    6,717.84x = 67,119,598.04
  5. Step 5: Solve for x
    x = 67,119,598.04/6,717.84
  6. Step 6: Final answer
    x = 9,991.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.