Home / 15,322.60-21,123.30-10,277.80

Finding the Fourth Proportional to 15,322.60, 21,123.30 and 10,277.80

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Solution

The fourth proportional to 15,322.60, 21,123.30 and 10,277.80 is: 14,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.60 : 21,123.30 = 10,277.80 : x
  2. Step 2: Convert to fraction form
    15,322.60/21,123.30 = 10,277.80/x
  3. Step 3: Cross multiply
    15,322.60x = 21,123.30 × 10,277.80
  4. Step 4: Simplify right side
    15,322.60x = 217,101,052.74
  5. Step 5: Solve for x
    x = 217,101,052.74/15,322.60
  6. Step 6: Final answer
    x = 14,168.68

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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.