Home / 13,409.96-18,512.16-9,434.48

Finding the Fourth Proportional to 13,409.96, 18,512.16 and 9,434.48

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Solution

The fourth proportional to 13,409.96, 18,512.16 and 9,434.48 is: 13,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.96 : 18,512.16 = 9,434.48 : x
  2. Step 2: Convert to fraction form
    13,409.96/18,512.16 = 9,434.48/x
  3. Step 3: Cross multiply
    13,409.96x = 18,512.16 × 9,434.48
  4. Step 4: Simplify right side
    13,409.96x = 174,652,603.28
  5. Step 5: Solve for x
    x = 174,652,603.28/13,409.96
  6. Step 6: Final answer
    x = 13,024.10

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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.