Home / 13,637.07-18,820.58-8,335.41

Finding the Fourth Proportional to 13,637.07, 18,820.58 and 8,335.41

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Solution

The fourth proportional to 13,637.07, 18,820.58 and 8,335.41 is: 11,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.07 : 18,820.58 = 8,335.41 : x
  2. Step 2: Convert to fraction form
    13,637.07/18,820.58 = 8,335.41/x
  3. Step 3: Cross multiply
    13,637.07x = 18,820.58 × 8,335.41
  4. Step 4: Simplify right side
    13,637.07x = 156,877,250.74
  5. Step 5: Solve for x
    x = 156,877,250.74/13,637.07
  6. Step 6: Final answer
    x = 11,503.74

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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.