Home / 10,355.79-14,291.57-6,109.35

Finding the Fourth Proportional to 10,355.79, 14,291.57 and 6,109.35

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Solution

The fourth proportional to 10,355.79, 14,291.57 and 6,109.35 is: 8,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.79 : 14,291.57 = 6,109.35 : x
  2. Step 2: Convert to fraction form
    10,355.79/14,291.57 = 6,109.35/x
  3. Step 3: Cross multiply
    10,355.79x = 14,291.57 × 6,109.35
  4. Step 4: Simplify right side
    10,355.79x = 87,312,164.86
  5. Step 5: Solve for x
    x = 87,312,164.86/10,355.79
  6. Step 6: Final answer
    x = 8,431.24

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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.