Home / 13,807.20-20,710.80-8,886.45

Finding the Fourth Proportional to 13,807.20, 20,710.80 and 8,886.45

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Solution

The fourth proportional to 13,807.20, 20,710.80 and 8,886.45 is: 13,329.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.20 : 20,710.80 = 8,886.45 : x
  2. Step 2: Convert to fraction form
    13,807.20/20,710.80 = 8,886.45/x
  3. Step 3: Cross multiply
    13,807.20x = 20,710.80 × 8,886.45
  4. Step 4: Simplify right side
    13,807.20x = 184,045,488.66
  5. Step 5: Solve for x
    x = 184,045,488.66/13,807.20
  6. Step 6: Final answer
    x = 13,329.68

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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.