Home / 14,955.13-20,637.25-8,239.42

Finding the Fourth Proportional to 14,955.13, 20,637.25 and 8,239.42

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Solution

The fourth proportional to 14,955.13, 20,637.25 and 8,239.42 is: 11,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.13 : 20,637.25 = 8,239.42 : x
  2. Step 2: Convert to fraction form
    14,955.13/20,637.25 = 8,239.42/x
  3. Step 3: Cross multiply
    14,955.13x = 20,637.25 × 8,239.42
  4. Step 4: Simplify right side
    14,955.13x = 170,038,970.40
  5. Step 5: Solve for x
    x = 170,038,970.40/14,955.13
  6. Step 6: Final answer
    x = 11,369.94

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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.