Home / 14,666.84-20,239.98-8,378.36

Finding the Fourth Proportional to 14,666.84, 20,239.98 and 8,378.36

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Solution

The fourth proportional to 14,666.84, 20,239.98 and 8,378.36 is: 11,561.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.84 : 20,239.98 = 8,378.36 : x
  2. Step 2: Convert to fraction form
    14,666.84/20,239.98 = 8,378.36/x
  3. Step 3: Cross multiply
    14,666.84x = 20,239.98 × 8,378.36
  4. Step 4: Simplify right side
    14,666.84x = 169,577,838.83
  5. Step 5: Solve for x
    x = 169,577,838.83/14,666.84
  6. Step 6: Final answer
    x = 11,561.99

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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.