Home / 12,342.76-18,515.58-4,335.07

Finding the Fourth Proportional to 12,342.76, 18,515.58 and 4,335.07

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Solution

The fourth proportional to 12,342.76, 18,515.58 and 4,335.07 is: 6,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.76 : 18,515.58 = 4,335.07 : x
  2. Step 2: Convert to fraction form
    12,342.76/18,515.58 = 4,335.07/x
  3. Step 3: Cross multiply
    12,342.76x = 18,515.58 × 4,335.07
  4. Step 4: Simplify right side
    12,342.76x = 80,266,289.10
  5. Step 5: Solve for x
    x = 80,266,289.10/12,342.76
  6. Step 6: Final answer
    x = 6,503.11

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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.