Home / 14,143.31-19,518.08-7,769.98

Finding the Fourth Proportional to 14,143.31, 19,518.08 and 7,769.98

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Solution

The fourth proportional to 14,143.31, 19,518.08 and 7,769.98 is: 10,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.31 : 19,518.08 = 7,769.98 : x
  2. Step 2: Convert to fraction form
    14,143.31/19,518.08 = 7,769.98/x
  3. Step 3: Cross multiply
    14,143.31x = 19,518.08 × 7,769.98
  4. Step 4: Simplify right side
    14,143.31x = 151,655,076.79
  5. Step 5: Solve for x
    x = 151,655,076.79/14,143.31
  6. Step 6: Final answer
    x = 10,722.74

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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.