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Finding the Fourth Proportional to 8,860.77, 13,292.06 and 3,931.51

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Solution

The fourth proportional to 8,860.77, 13,292.06 and 3,931.51 is: 5,897.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.77 : 13,292.06 = 3,931.51 : x
  2. Step 2: Convert to fraction form
    8,860.77/13,292.06 = 3,931.51/x
  3. Step 3: Cross multiply
    8,860.77x = 13,292.06 × 3,931.51
  4. Step 4: Simplify right side
    8,860.77x = 52,257,866.81
  5. Step 5: Solve for x
    x = 52,257,866.81/8,860.77
  6. Step 6: Final answer
    x = 5,897.67

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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.