Home / 7,020.35-10,521.68-6,140.75

Finding the Fourth Proportional to 7,020.35, 10,521.68 and 6,140.75

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Solution

The fourth proportional to 7,020.35, 10,521.68 and 6,140.75 is: 9,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.35 : 10,521.68 = 6,140.75 : x
  2. Step 2: Convert to fraction form
    7,020.35/10,521.68 = 6,140.75/x
  3. Step 3: Cross multiply
    7,020.35x = 10,521.68 × 6,140.75
  4. Step 4: Simplify right side
    7,020.35x = 64,611,002.06
  5. Step 5: Solve for x
    x = 64,611,002.06/7,020.35
  6. Step 6: Final answer
    x = 9,203.39

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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.