Home / 14,178.15-19,566.50-7,890.93

Finding the Fourth Proportional to 14,178.15, 19,566.50 and 7,890.93

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Solution

The fourth proportional to 14,178.15, 19,566.50 and 7,890.93 is: 10,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.15 : 19,566.50 = 7,890.93 : x
  2. Step 2: Convert to fraction form
    14,178.15/19,566.50 = 7,890.93/x
  3. Step 3: Cross multiply
    14,178.15x = 19,566.50 × 7,890.93
  4. Step 4: Simplify right side
    14,178.15x = 154,397,881.85
  5. Step 5: Solve for x
    x = 154,397,881.85/14,178.15
  6. Step 6: Final answer
    x = 10,889.85

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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.