Home / 14,079.29-19,428.10-8,412.91

Finding the Fourth Proportional to 14,079.29, 19,428.10 and 8,412.91

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Solution

The fourth proportional to 14,079.29, 19,428.10 and 8,412.91 is: 11,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.29 : 19,428.10 = 8,412.91 : x
  2. Step 2: Convert to fraction form
    14,079.29/19,428.10 = 8,412.91/x
  3. Step 3: Cross multiply
    14,079.29x = 19,428.10 × 8,412.91
  4. Step 4: Simplify right side
    14,079.29x = 163,446,856.77
  5. Step 5: Solve for x
    x = 163,446,856.77/14,079.29
  6. Step 6: Final answer
    x = 11,609.03

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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.