Home / 13,535.04-20,308.62-8,603.40

Finding the Fourth Proportional to 13,535.04, 20,308.62 and 8,603.40

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Solution

The fourth proportional to 13,535.04, 20,308.62 and 8,603.40 is: 12,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.04 : 20,308.62 = 8,603.40 : x
  2. Step 2: Convert to fraction form
    13,535.04/20,308.62 = 8,603.40/x
  3. Step 3: Cross multiply
    13,535.04x = 20,308.62 × 8,603.40
  4. Step 4: Simplify right side
    13,535.04x = 174,723,181.31
  5. Step 5: Solve for x
    x = 174,723,181.31/13,535.04
  6. Step 6: Final answer
    x = 12,908.95

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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.