Home / 13,386.87-20,053.02-6,345.54

Finding the Fourth Proportional to 13,386.87, 20,053.02 and 6,345.54

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Solution

The fourth proportional to 13,386.87, 20,053.02 and 6,345.54 is: 9,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.87 : 20,053.02 = 6,345.54 : x
  2. Step 2: Convert to fraction form
    13,386.87/20,053.02 = 6,345.54/x
  3. Step 3: Cross multiply
    13,386.87x = 20,053.02 × 6,345.54
  4. Step 4: Simplify right side
    13,386.87x = 127,247,240.53
  5. Step 5: Solve for x
    x = 127,247,240.53/13,386.87
  6. Step 6: Final answer
    x = 9,505.38

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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.