Home / 15,563.80-21,478.04-8,849.28

Finding the Fourth Proportional to 15,563.80, 21,478.04 and 8,849.28

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Solution

The fourth proportional to 15,563.80, 21,478.04 and 8,849.28 is: 12,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,563.80 : 21,478.04 = 8,849.28 : x
  2. Step 2: Convert to fraction form
    15,563.80/21,478.04 = 8,849.28/x
  3. Step 3: Cross multiply
    15,563.80x = 21,478.04 × 8,849.28
  4. Step 4: Simplify right side
    15,563.80x = 190,065,189.81
  5. Step 5: Solve for x
    x = 190,065,189.81/15,563.80
  6. Step 6: Final answer
    x = 12,212.00

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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.