Home / 7,830.90-10,806.63-4,294.17

Finding the Fourth Proportional to 7,830.90, 10,806.63 and 4,294.17

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Solution

The fourth proportional to 7,830.90, 10,806.63 and 4,294.17 is: 5,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.90 : 10,806.63 = 4,294.17 : x
  2. Step 2: Convert to fraction form
    7,830.90/10,806.63 = 4,294.17/x
  3. Step 3: Cross multiply
    7,830.90x = 10,806.63 × 4,294.17
  4. Step 4: Simplify right side
    7,830.90x = 46,405,506.35
  5. Step 5: Solve for x
    x = 46,405,506.35/7,830.90
  6. Step 6: Final answer
    x = 5,925.95

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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.