Home / 14,187.24-21,280.80-6,386.92

Finding the Fourth Proportional to 14,187.24, 21,280.80 and 6,386.92

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Solution

The fourth proportional to 14,187.24, 21,280.80 and 6,386.92 is: 9,580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.24 : 21,280.80 = 6,386.92 : x
  2. Step 2: Convert to fraction form
    14,187.24/21,280.80 = 6,386.92/x
  3. Step 3: Cross multiply
    14,187.24x = 21,280.80 × 6,386.92
  4. Step 4: Simplify right side
    14,187.24x = 135,918,767.14
  5. Step 5: Solve for x
    x = 135,918,767.14/14,187.24
  6. Step 6: Final answer
    x = 9,580.35

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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.