Home / 14,406.31-19,875.54-8,435.80

Finding the Fourth Proportional to 14,406.31, 19,875.54 and 8,435.80

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Solution

The fourth proportional to 14,406.31, 19,875.54 and 8,435.80 is: 11,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,406.31 : 19,875.54 = 8,435.80 : x
  2. Step 2: Convert to fraction form
    14,406.31/19,875.54 = 8,435.80/x
  3. Step 3: Cross multiply
    14,406.31x = 19,875.54 × 8,435.80
  4. Step 4: Simplify right side
    14,406.31x = 167,666,080.33
  5. Step 5: Solve for x
    x = 167,666,080.33/14,406.31
  6. Step 6: Final answer
    x = 11,638.38

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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.