Home / 8,430.16-12,645.53-3,164.63

Finding the Fourth Proportional to 8,430.16, 12,645.53 and 3,164.63

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Solution

The fourth proportional to 8,430.16, 12,645.53 and 3,164.63 is: 4,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.16 : 12,645.53 = 3,164.63 : x
  2. Step 2: Convert to fraction form
    8,430.16/12,645.53 = 3,164.63/x
  3. Step 3: Cross multiply
    8,430.16x = 12,645.53 × 3,164.63
  4. Step 4: Simplify right side
    8,430.16x = 40,018,423.60
  5. Step 5: Solve for x
    x = 40,018,423.60/8,430.16
  6. Step 6: Final answer
    x = 4,747.05

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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.