Home / 8,430.19-11,633.55-4,653.43

Finding the Fourth Proportional to 8,430.19, 11,633.55 and 4,653.43

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Solution

The fourth proportional to 8,430.19, 11,633.55 and 4,653.43 is: 6,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.19 : 11,633.55 = 4,653.43 : x
  2. Step 2: Convert to fraction form
    8,430.19/11,633.55 = 4,653.43/x
  3. Step 3: Cross multiply
    8,430.19x = 11,633.55 × 4,653.43
  4. Step 4: Simplify right side
    8,430.19x = 54,135,864.04
  5. Step 5: Solve for x
    x = 54,135,864.04/8,430.19
  6. Step 6: Final answer
    x = 6,421.66

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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.