Home / 7,718.20-10,641.16-6,300.42

Finding the Fourth Proportional to 7,718.20, 10,641.16 and 6,300.42

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Solution

The fourth proportional to 7,718.20, 10,641.16 and 6,300.42 is: 8,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.20 : 10,641.16 = 6,300.42 : x
  2. Step 2: Convert to fraction form
    7,718.20/10,641.16 = 6,300.42/x
  3. Step 3: Cross multiply
    7,718.20x = 10,641.16 × 6,300.42
  4. Step 4: Simplify right side
    7,718.20x = 67,043,777.29
  5. Step 5: Solve for x
    x = 67,043,777.29/7,718.20
  6. Step 6: Final answer
    x = 8,686.45

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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.