Home / 12,905.96-19,360.86-4,585.28

Finding the Fourth Proportional to 12,905.96, 19,360.86 and 4,585.28

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Solution

The fourth proportional to 12,905.96, 19,360.86 and 4,585.28 is: 6,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.96 : 19,360.86 = 4,585.28 : x
  2. Step 2: Convert to fraction form
    12,905.96/19,360.86 = 4,585.28/x
  3. Step 3: Cross multiply
    12,905.96x = 19,360.86 × 4,585.28
  4. Step 4: Simplify right side
    12,905.96x = 88,774,867.34
  5. Step 5: Solve for x
    x = 88,774,867.34/12,905.96
  6. Step 6: Final answer
    x = 6,878.60

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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.