Home / 14,798.48-20,420.57-8,339.17

Finding the Fourth Proportional to 14,798.48, 20,420.57 and 8,339.17

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Solution

The fourth proportional to 14,798.48, 20,420.57 and 8,339.17 is: 11,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,798.48 : 20,420.57 = 8,339.17 : x
  2. Step 2: Convert to fraction form
    14,798.48/20,420.57 = 8,339.17/x
  3. Step 3: Cross multiply
    14,798.48x = 20,420.57 × 8,339.17
  4. Step 4: Simplify right side
    14,798.48x = 170,290,563.03
  5. Step 5: Solve for x
    x = 170,290,563.03/14,798.48
  6. Step 6: Final answer
    x = 11,507.30

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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.