Home / 12,746.34-19,119.60-12,188.70

Finding the Fourth Proportional to 12,746.34, 19,119.60 and 12,188.70

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Solution

The fourth proportional to 12,746.34, 19,119.60 and 12,188.70 is: 18,283.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.34 : 19,119.60 = 12,188.70 : x
  2. Step 2: Convert to fraction form
    12,746.34/19,119.60 = 12,188.70/x
  3. Step 3: Cross multiply
    12,746.34x = 19,119.60 × 12,188.70
  4. Step 4: Simplify right side
    12,746.34x = 233,043,068.52
  5. Step 5: Solve for x
    x = 233,043,068.52/12,746.34
  6. Step 6: Final answer
    x = 18,283.14

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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.