Home / 14,123.03-21,158.72-6,612.81

Finding the Fourth Proportional to 14,123.03, 21,158.72 and 6,612.81

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Solution

The fourth proportional to 14,123.03, 21,158.72 and 6,612.81 is: 9,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.03 : 21,158.72 = 6,612.81 : x
  2. Step 2: Convert to fraction form
    14,123.03/21,158.72 = 6,612.81/x
  3. Step 3: Cross multiply
    14,123.03x = 21,158.72 × 6,612.81
  4. Step 4: Simplify right side
    14,123.03x = 139,918,611.74
  5. Step 5: Solve for x
    x = 139,918,611.74/14,123.03
  6. Step 6: Final answer
    x = 9,907.13

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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.