Home / 14,259.86-19,669.33-9,147.28

Finding the Fourth Proportional to 14,259.86, 19,669.33 and 9,147.28

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Solution

The fourth proportional to 14,259.86, 19,669.33 and 9,147.28 is: 12,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.86 : 19,669.33 = 9,147.28 : x
  2. Step 2: Convert to fraction form
    14,259.86/19,669.33 = 9,147.28/x
  3. Step 3: Cross multiply
    14,259.86x = 19,669.33 × 9,147.28
  4. Step 4: Simplify right side
    14,259.86x = 179,920,868.92
  5. Step 5: Solve for x
    x = 179,920,868.92/14,259.86
  6. Step 6: Final answer
    x = 12,617.30

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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.