Home / 8,639.04-12,958.60-4,741.32

Finding the Fourth Proportional to 8,639.04, 12,958.60 and 4,741.32

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Solution

The fourth proportional to 8,639.04, 12,958.60 and 4,741.32 is: 7,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.04 : 12,958.60 = 4,741.32 : x
  2. Step 2: Convert to fraction form
    8,639.04/12,958.60 = 4,741.32/x
  3. Step 3: Cross multiply
    8,639.04x = 12,958.60 × 4,741.32
  4. Step 4: Simplify right side
    8,639.04x = 61,440,869.35
  5. Step 5: Solve for x
    x = 61,440,869.35/8,639.04
  6. Step 6: Final answer
    x = 7,112.00

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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.