Home / 12,528.48-18,795.20-5,603.04

Finding the Fourth Proportional to 12,528.48, 18,795.20 and 5,603.04

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Solution

The fourth proportional to 12,528.48, 18,795.20 and 5,603.04 is: 8,405.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.48 : 18,795.20 = 5,603.04 : x
  2. Step 2: Convert to fraction form
    12,528.48/18,795.20 = 5,603.04/x
  3. Step 3: Cross multiply
    12,528.48x = 18,795.20 × 5,603.04
  4. Step 4: Simplify right side
    12,528.48x = 105,310,257.41
  5. Step 5: Solve for x
    x = 105,310,257.41/12,528.48
  6. Step 6: Final answer
    x = 8,405.67

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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.