Home / 11,430.60-15,774.96-6,395.40

Finding the Fourth Proportional to 11,430.60, 15,774.96 and 6,395.40

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Solution

The fourth proportional to 11,430.60, 15,774.96 and 6,395.40 is: 8,826.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.60 : 15,774.96 = 6,395.40 : x
  2. Step 2: Convert to fraction form
    11,430.60/15,774.96 = 6,395.40/x
  3. Step 3: Cross multiply
    11,430.60x = 15,774.96 × 6,395.40
  4. Step 4: Simplify right side
    11,430.60x = 100,887,179.18
  5. Step 5: Solve for x
    x = 100,887,179.18/11,430.60
  6. Step 6: Final answer
    x = 8,826.06

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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.