Home / 14,855.84-20,501.36-8,141.72

Finding the Fourth Proportional to 14,855.84, 20,501.36 and 8,141.72

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Solution

The fourth proportional to 14,855.84, 20,501.36 and 8,141.72 is: 11,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.84 : 20,501.36 = 8,141.72 : x
  2. Step 2: Convert to fraction form
    14,855.84/20,501.36 = 8,141.72/x
  3. Step 3: Cross multiply
    14,855.84x = 20,501.36 × 8,141.72
  4. Step 4: Simplify right side
    14,855.84x = 166,916,332.74
  5. Step 5: Solve for x
    x = 166,916,332.74/14,855.84
  6. Step 6: Final answer
    x = 11,235.74

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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.