Home / 14,325.51-21,365.80-12,581.98

Finding the Fourth Proportional to 14,325.51, 21,365.80 and 12,581.98

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Solution

The fourth proportional to 14,325.51, 21,365.80 and 12,581.98 is: 18,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325.51 : 21,365.80 = 12,581.98 : x
  2. Step 2: Convert to fraction form
    14,325.51/21,365.80 = 12,581.98/x
  3. Step 3: Cross multiply
    14,325.51x = 21,365.80 × 12,581.98
  4. Step 4: Simplify right side
    14,325.51x = 268,824,005.37
  5. Step 5: Solve for x
    x = 268,824,005.37/14,325.51
  6. Step 6: Final answer
    x = 18,765.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.