Home / 14,139.32-19,503.29-8,686.00

Finding the Fourth Proportional to 14,139.32, 19,503.29 and 8,686.00

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Solution

The fourth proportional to 14,139.32, 19,503.29 and 8,686.00 is: 11,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.32 : 19,503.29 = 8,686.00 : x
  2. Step 2: Convert to fraction form
    14,139.32/19,503.29 = 8,686.00/x
  3. Step 3: Cross multiply
    14,139.32x = 19,503.29 × 8,686.00
  4. Step 4: Simplify right side
    14,139.32x = 169,405,552.56
  5. Step 5: Solve for x
    x = 169,405,552.56/14,139.32
  6. Step 6: Final answer
    x = 11,981.17

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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.