Home / 13,534.32-18,684.36-9,335.28

Finding the Fourth Proportional to 13,534.32, 18,684.36 and 9,335.28

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Solution

The fourth proportional to 13,534.32, 18,684.36 and 9,335.28 is: 12,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.32 : 18,684.36 = 9,335.28 : x
  2. Step 2: Convert to fraction form
    13,534.32/18,684.36 = 9,335.28/x
  3. Step 3: Cross multiply
    13,534.32x = 18,684.36 × 9,335.28
  4. Step 4: Simplify right side
    13,534.32x = 174,423,732.22
  5. Step 5: Solve for x
    x = 174,423,732.22/13,534.32
  6. Step 6: Final answer
    x = 12,887.51

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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.