Home / 13,410.87-18,498.58-8,637

Finding the Fourth Proportional to 13,410.87, 18,498.58 and 8,637

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Solution

The fourth proportional to 13,410.87, 18,498.58 and 8,637 is: 11,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.87 : 18,498.58 = 8,637 : x
  2. Step 2: Convert to fraction form
    13,410.87/18,498.58 = 8,637/x
  3. Step 3: Cross multiply
    13,410.87x = 18,498.58 × 8,637
  4. Step 4: Simplify right side
    13,410.87x = 159,772,235.46
  5. Step 5: Solve for x
    x = 159,772,235.46/13,410.87
  6. Step 6: Final answer
    x = 11,913.64

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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.