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Finding the Fourth Proportional to 9,157.61, 12,637.51 and 4,965.86

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Solution

The fourth proportional to 9,157.61, 12,637.51 and 4,965.86 is: 6,852.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.61 : 12,637.51 = 4,965.86 : x
  2. Step 2: Convert to fraction form
    9,157.61/12,637.51 = 4,965.86/x
  3. Step 3: Cross multiply
    9,157.61x = 12,637.51 × 4,965.86
  4. Step 4: Simplify right side
    9,157.61x = 62,756,105.41
  5. Step 5: Solve for x
    x = 62,756,105.41/9,157.61
  6. Step 6: Final answer
    x = 6,852.89

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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.