Home / 14,619.34-20,174.58-7,904.91

Finding the Fourth Proportional to 14,619.34, 20,174.58 and 7,904.91

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Solution

The fourth proportional to 14,619.34, 20,174.58 and 7,904.91 is: 10,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.34 : 20,174.58 = 7,904.91 : x
  2. Step 2: Convert to fraction form
    14,619.34/20,174.58 = 7,904.91/x
  3. Step 3: Cross multiply
    14,619.34x = 20,174.58 × 7,904.91
  4. Step 4: Simplify right side
    14,619.34x = 159,478,314.84
  5. Step 5: Solve for x
    x = 159,478,314.84/14,619.34
  6. Step 6: Final answer
    x = 10,908.72

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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.