Home / 15,015.60-22,501.80-6,688.80

Finding the Fourth Proportional to 15,015.60, 22,501.80 and 6,688.80

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Solution

The fourth proportional to 15,015.60, 22,501.80 and 6,688.80 is: 10,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.60 : 22,501.80 = 6,688.80 : x
  2. Step 2: Convert to fraction form
    15,015.60/22,501.80 = 6,688.80/x
  3. Step 3: Cross multiply
    15,015.60x = 22,501.80 × 6,688.80
  4. Step 4: Simplify right side
    15,015.60x = 150,510,039.84
  5. Step 5: Solve for x
    x = 150,510,039.84/15,015.60
  6. Step 6: Final answer
    x = 10,023.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.