Home / 7,830.29-10,806.14-4,685.87

Finding the Fourth Proportional to 7,830.29, 10,806.14 and 4,685.87

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Solution

The fourth proportional to 7,830.29, 10,806.14 and 4,685.87 is: 6,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.29 : 10,806.14 = 4,685.87 : x
  2. Step 2: Convert to fraction form
    7,830.29/10,806.14 = 4,685.87/x
  3. Step 3: Cross multiply
    7,830.29x = 10,806.14 × 4,685.87
  4. Step 4: Simplify right side
    7,830.29x = 50,636,167.24
  5. Step 5: Solve for x
    x = 50,636,167.24/7,830.29
  6. Step 6: Final answer
    x = 6,466.70

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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.