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Finding the Fourth Proportional to 7,762.96, 10,709.58 and 6,275.80

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Solution

The fourth proportional to 7,762.96, 10,709.58 and 6,275.80 is: 8,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762.96 : 10,709.58 = 6,275.80 : x
  2. Step 2: Convert to fraction form
    7,762.96/10,709.58 = 6,275.80/x
  3. Step 3: Cross multiply
    7,762.96x = 10,709.58 × 6,275.80
  4. Step 4: Simplify right side
    7,762.96x = 67,211,182.16
  5. Step 5: Solve for x
    x = 67,211,182.16/7,762.96
  6. Step 6: Final answer
    x = 8,657.93

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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.