Home / 12,558.85-18,838.27-9,787.60

Finding the Fourth Proportional to 12,558.85, 18,838.27 and 9,787.60

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Solution

The fourth proportional to 12,558.85, 18,838.27 and 9,787.60 is: 14,681.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.85 : 18,838.27 = 9,787.60 : x
  2. Step 2: Convert to fraction form
    12,558.85/18,838.27 = 9,787.60/x
  3. Step 3: Cross multiply
    12,558.85x = 18,838.27 × 9,787.60
  4. Step 4: Simplify right side
    12,558.85x = 184,381,357.26
  5. Step 5: Solve for x
    x = 184,381,357.26/12,558.85
  6. Step 6: Final answer
    x = 14,681.39

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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.