Home / 14,722.34-20,317.09-8,434.74

Finding the Fourth Proportional to 14,722.34, 20,317.09 and 8,434.74

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Solution

The fourth proportional to 14,722.34, 20,317.09 and 8,434.74 is: 11,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722.34 : 20,317.09 = 8,434.74 : x
  2. Step 2: Convert to fraction form
    14,722.34/20,317.09 = 8,434.74/x
  3. Step 3: Cross multiply
    14,722.34x = 20,317.09 × 8,434.74
  4. Step 4: Simplify right side
    14,722.34x = 171,369,371.71
  5. Step 5: Solve for x
    x = 171,369,371.71/14,722.34
  6. Step 6: Final answer
    x = 11,640.09

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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.