Home / 14,139.99-19,507.23-8,472.93

Finding the Fourth Proportional to 14,139.99, 19,507.23 and 8,472.93

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Solution

The fourth proportional to 14,139.99, 19,507.23 and 8,472.93 is: 11,689.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.99 : 19,507.23 = 8,472.93 : x
  2. Step 2: Convert to fraction form
    14,139.99/19,507.23 = 8,472.93/x
  3. Step 3: Cross multiply
    14,139.99x = 19,507.23 × 8,472.93
  4. Step 4: Simplify right side
    14,139.99x = 165,283,376.00
  5. Step 5: Solve for x
    x = 165,283,376.00/14,139.99
  6. Step 6: Final answer
    x = 11,689.07

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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.