Home / 12,123.32-16,760.86-10,646.60

Finding the Fourth Proportional to 12,123.32, 16,760.86 and 10,646.60

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Solution

The fourth proportional to 12,123.32, 16,760.86 and 10,646.60 is: 14,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.32 : 16,760.86 = 10,646.60 : x
  2. Step 2: Convert to fraction form
    12,123.32/16,760.86 = 10,646.60/x
  3. Step 3: Cross multiply
    12,123.32x = 16,760.86 × 10,646.60
  4. Step 4: Simplify right side
    12,123.32x = 178,446,172.08
  5. Step 5: Solve for x
    x = 178,446,172.08/12,123.32
  6. Step 6: Final answer
    x = 14,719.25

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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.