Home / 7,020.07-10,529.21-4,387.79

Finding the Fourth Proportional to 7,020.07, 10,529.21 and 4,387.79

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Solution

The fourth proportional to 7,020.07, 10,529.21 and 4,387.79 is: 6,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.07 : 10,529.21 = 4,387.79 : x
  2. Step 2: Convert to fraction form
    7,020.07/10,529.21 = 4,387.79/x
  3. Step 3: Cross multiply
    7,020.07x = 10,529.21 × 4,387.79
  4. Step 4: Simplify right side
    7,020.07x = 46,199,999.64
  5. Step 5: Solve for x
    x = 46,199,999.64/7,020.07
  6. Step 6: Final answer
    x = 6,581.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.