Home / 15,107.04-20,847.96-8,393.40

Finding the Fourth Proportional to 15,107.04, 20,847.96 and 8,393.40

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Solution

The fourth proportional to 15,107.04, 20,847.96 and 8,393.40 is: 11,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.04 : 20,847.96 = 8,393.40 : x
  2. Step 2: Convert to fraction form
    15,107.04/20,847.96 = 8,393.40/x
  3. Step 3: Cross multiply
    15,107.04x = 20,847.96 × 8,393.40
  4. Step 4: Simplify right side
    15,107.04x = 174,985,267.46
  5. Step 5: Solve for x
    x = 174,985,267.46/15,107.04
  6. Step 6: Final answer
    x = 11,583.03

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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.