Home / 12,688.76-19,036.02-6,845.24

Finding the Fourth Proportional to 12,688.76, 19,036.02 and 6,845.24

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Solution

The fourth proportional to 12,688.76, 19,036.02 and 6,845.24 is: 10,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.76 : 19,036.02 = 6,845.24 : x
  2. Step 2: Convert to fraction form
    12,688.76/19,036.02 = 6,845.24/x
  3. Step 3: Cross multiply
    12,688.76x = 19,036.02 × 6,845.24
  4. Step 4: Simplify right side
    12,688.76x = 130,306,125.54
  5. Step 5: Solve for x
    x = 130,306,125.54/12,688.76
  6. Step 6: Final answer
    x = 10,269.41

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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.