Home / 13,726.02-18,934.95-9,188.88

Finding the Fourth Proportional to 13,726.02, 18,934.95 and 9,188.88

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Solution

The fourth proportional to 13,726.02, 18,934.95 and 9,188.88 is: 12,676.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.02 : 18,934.95 = 9,188.88 : x
  2. Step 2: Convert to fraction form
    13,726.02/18,934.95 = 9,188.88/x
  3. Step 3: Cross multiply
    13,726.02x = 18,934.95 × 9,188.88
  4. Step 4: Simplify right side
    13,726.02x = 173,990,983.36
  5. Step 5: Solve for x
    x = 173,990,983.36/13,726.02
  6. Step 6: Final answer
    x = 12,676.00

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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.