Home / 8,430.58-12,649.71-3,501.32

Finding the Fourth Proportional to 8,430.58, 12,649.71 and 3,501.32

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Solution

The fourth proportional to 8,430.58, 12,649.71 and 3,501.32 is: 5,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.58 : 12,649.71 = 3,501.32 : x
  2. Step 2: Convert to fraction form
    8,430.58/12,649.71 = 3,501.32/x
  3. Step 3: Cross multiply
    8,430.58x = 12,649.71 × 3,501.32
  4. Step 4: Simplify right side
    8,430.58x = 44,290,682.62
  5. Step 5: Solve for x
    x = 44,290,682.62/8,430.58
  6. Step 6: Final answer
    x = 5,253.58

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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.