Home / 8,780.56-12,117.09-4,801.63

Finding the Fourth Proportional to 8,780.56, 12,117.09 and 4,801.63

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Solution

The fourth proportional to 8,780.56, 12,117.09 and 4,801.63 is: 6,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.56 : 12,117.09 = 4,801.63 : x
  2. Step 2: Convert to fraction form
    8,780.56/12,117.09 = 4,801.63/x
  3. Step 3: Cross multiply
    8,780.56x = 12,117.09 × 4,801.63
  4. Step 4: Simplify right side
    8,780.56x = 58,181,782.86
  5. Step 5: Solve for x
    x = 58,181,782.86/8,780.56
  6. Step 6: Final answer
    x = 6,626.20

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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.