Home / 14,722.83-20,312.51-8,348.72

Finding the Fourth Proportional to 14,722.83, 20,312.51 and 8,348.72

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Solution

The fourth proportional to 14,722.83, 20,312.51 and 8,348.72 is: 11,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722.83 : 20,312.51 = 8,348.72 : x
  2. Step 2: Convert to fraction form
    14,722.83/20,312.51 = 8,348.72/x
  3. Step 3: Cross multiply
    14,722.83x = 20,312.51 × 8,348.72
  4. Step 4: Simplify right side
    14,722.83x = 169,583,315.18
  5. Step 5: Solve for x
    x = 169,583,315.18/14,722.83
  6. Step 6: Final answer
    x = 11,518.39

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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.