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Finding the Fourth Proportional to 14,918.99, 22,378.48 and 8,357.99

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Solution

The fourth proportional to 14,918.99, 22,378.48 and 8,357.99 is: 12,536.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.99 : 22,378.48 = 8,357.99 : x
  2. Step 2: Convert to fraction form
    14,918.99/22,378.48 = 8,357.99/x
  3. Step 3: Cross multiply
    14,918.99x = 22,378.48 × 8,357.99
  4. Step 4: Simplify right side
    14,918.99x = 187,038,979.27
  5. Step 5: Solve for x
    x = 187,038,979.27/14,918.99
  6. Step 6: Final answer
    x = 12,536.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.