Home / 14,188.77-21,297.74-13,663.89

Finding the Fourth Proportional to 14,188.77, 21,297.74 and 13,663.89

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Solution

The fourth proportional to 14,188.77, 21,297.74 and 13,663.89 is: 20,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.77 : 21,297.74 = 13,663.89 : x
  2. Step 2: Convert to fraction form
    14,188.77/21,297.74 = 13,663.89/x
  3. Step 3: Cross multiply
    14,188.77x = 21,297.74 × 13,663.89
  4. Step 4: Simplify right side
    14,188.77x = 291,009,908.29
  5. Step 5: Solve for x
    x = 291,009,908.29/14,188.77
  6. Step 6: Final answer
    x = 20,509.88

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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.