Home / 14,039.64-21,054.60-7,809.12

Finding the Fourth Proportional to 14,039.64, 21,054.60 and 7,809.12

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Solution

The fourth proportional to 14,039.64, 21,054.60 and 7,809.12 is: 11,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.64 : 21,054.60 = 7,809.12 : x
  2. Step 2: Convert to fraction form
    14,039.64/21,054.60 = 7,809.12/x
  3. Step 3: Cross multiply
    14,039.64x = 21,054.60 × 7,809.12
  4. Step 4: Simplify right side
    14,039.64x = 164,417,897.95
  5. Step 5: Solve for x
    x = 164,417,897.95/14,039.64
  6. Step 6: Final answer
    x = 11,710.98

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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.