Home / 13,358.17-18,434.55-8,051.86

Finding the Fourth Proportional to 13,358.17, 18,434.55 and 8,051.86

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Solution

The fourth proportional to 13,358.17, 18,434.55 and 8,051.86 is: 11,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.17 : 18,434.55 = 8,051.86 : x
  2. Step 2: Convert to fraction form
    13,358.17/18,434.55 = 8,051.86/x
  3. Step 3: Cross multiply
    13,358.17x = 18,434.55 × 8,051.86
  4. Step 4: Simplify right side
    13,358.17x = 148,432,415.76
  5. Step 5: Solve for x
    x = 148,432,415.76/13,358.17
  6. Step 6: Final answer
    x = 11,111.73

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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.