Home / 13,938.48-19,226.70-8,271.18

Finding the Fourth Proportional to 13,938.48, 19,226.70 and 8,271.18

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Solution

The fourth proportional to 13,938.48, 19,226.70 and 8,271.18 is: 11,409.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.48 : 19,226.70 = 8,271.18 : x
  2. Step 2: Convert to fraction form
    13,938.48/19,226.70 = 8,271.18/x
  3. Step 3: Cross multiply
    13,938.48x = 19,226.70 × 8,271.18
  4. Step 4: Simplify right side
    13,938.48x = 159,027,496.51
  5. Step 5: Solve for x
    x = 159,027,496.51/13,938.48
  6. Step 6: Final answer
    x = 11,409.24

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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.