Home / 8,699.42-12,005.26-4,720.55

Finding the Fourth Proportional to 8,699.42, 12,005.26 and 4,720.55

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Solution

The fourth proportional to 8,699.42, 12,005.26 and 4,720.55 is: 6,514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.42 : 12,005.26 = 4,720.55 : x
  2. Step 2: Convert to fraction form
    8,699.42/12,005.26 = 4,720.55/x
  3. Step 3: Cross multiply
    8,699.42x = 12,005.26 × 4,720.55
  4. Step 4: Simplify right side
    8,699.42x = 56,671,384.82
  5. Step 5: Solve for x
    x = 56,671,384.82/8,699.42
  6. Step 6: Final answer
    x = 6,514.39

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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.