Home / 18,645.03-25,730.75-10,688.76

Finding the Fourth Proportional to 18,645.03, 25,730.75 and 10,688.76

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Solution

The fourth proportional to 18,645.03, 25,730.75 and 10,688.76 is: 14,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.03 : 25,730.75 = 10,688.76 : x
  2. Step 2: Convert to fraction form
    18,645.03/25,730.75 = 10,688.76/x
  3. Step 3: Cross multiply
    18,645.03x = 25,730.75 × 10,688.76
  4. Step 4: Simplify right side
    18,645.03x = 275,029,838.09
  5. Step 5: Solve for x
    x = 275,029,838.09/18,645.03
  6. Step 6: Final answer
    x = 14,750.84

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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.