Home / 13,377.74-18,461.05-7,409.28

Finding the Fourth Proportional to 13,377.74, 18,461.05 and 7,409.28

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Solution

The fourth proportional to 13,377.74, 18,461.05 and 7,409.28 is: 10,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.74 : 18,461.05 = 7,409.28 : x
  2. Step 2: Convert to fraction form
    13,377.74/18,461.05 = 7,409.28/x
  3. Step 3: Cross multiply
    13,377.74x = 18,461.05 × 7,409.28
  4. Step 4: Simplify right side
    13,377.74x = 136,783,088.54
  5. Step 5: Solve for x
    x = 136,783,088.54/13,377.74
  6. Step 6: Final answer
    x = 10,224.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.