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Finding the Fourth Proportional to 8,526.87, 11,762.91 and 7,345.89

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Solution

The fourth proportional to 8,526.87, 11,762.91 and 7,345.89 is: 10,133.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,526.87 : 11,762.91 = 7,345.89 : x
  2. Step 2: Convert to fraction form
    8,526.87/11,762.91 = 7,345.89/x
  3. Step 3: Cross multiply
    8,526.87x = 11,762.91 × 7,345.89
  4. Step 4: Simplify right side
    8,526.87x = 86,409,042.94
  5. Step 5: Solve for x
    x = 86,409,042.94/8,526.87
  6. Step 6: Final answer
    x = 10,133.74

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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.