Home / 7,864.50-10,853.01-4,720.71

Finding the Fourth Proportional to 7,864.50, 10,853.01 and 4,720.71

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Solution

The fourth proportional to 7,864.50, 10,853.01 and 4,720.71 is: 6,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.50 : 10,853.01 = 4,720.71 : x
  2. Step 2: Convert to fraction form
    7,864.50/10,853.01 = 4,720.71/x
  3. Step 3: Cross multiply
    7,864.50x = 10,853.01 × 4,720.71
  4. Step 4: Simplify right side
    7,864.50x = 51,233,912.84
  5. Step 5: Solve for x
    x = 51,233,912.84/7,864.50
  6. Step 6: Final answer
    x = 6,514.58

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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.