Home / 14,417.51-19,896.13-8,129.84

Finding the Fourth Proportional to 14,417.51, 19,896.13 and 8,129.84

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Solution

The fourth proportional to 14,417.51, 19,896.13 and 8,129.84 is: 11,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,417.51 : 19,896.13 = 8,129.84 : x
  2. Step 2: Convert to fraction form
    14,417.51/19,896.13 = 8,129.84/x
  3. Step 3: Cross multiply
    14,417.51x = 19,896.13 × 8,129.84
  4. Step 4: Simplify right side
    14,417.51x = 161,752,423.58
  5. Step 5: Solve for x
    x = 161,752,423.58/14,417.51
  6. Step 6: Final answer
    x = 11,219.16

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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.