Home / 13,988.08-20,977.65-4,626.36

Finding the Fourth Proportional to 13,988.08, 20,977.65 and 4,626.36

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Solution

The fourth proportional to 13,988.08, 20,977.65 and 4,626.36 is: 6,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.08 : 20,977.65 = 4,626.36 : x
  2. Step 2: Convert to fraction form
    13,988.08/20,977.65 = 4,626.36/x
  3. Step 3: Cross multiply
    13,988.08x = 20,977.65 × 4,626.36
  4. Step 4: Simplify right side
    13,988.08x = 97,050,160.85
  5. Step 5: Solve for x
    x = 97,050,160.85/13,988.08
  6. Step 6: Final answer
    x = 6,938.06

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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.