Home / 15,473.57-21,353.55-8,399.99

Finding the Fourth Proportional to 15,473.57, 21,353.55 and 8,399.99

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Solution

The fourth proportional to 15,473.57, 21,353.55 and 8,399.99 is: 11,592.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.57 : 21,353.55 = 8,399.99 : x
  2. Step 2: Convert to fraction form
    15,473.57/21,353.55 = 8,399.99/x
  3. Step 3: Cross multiply
    15,473.57x = 21,353.55 × 8,399.99
  4. Step 4: Simplify right side
    15,473.57x = 179,369,606.46
  5. Step 5: Solve for x
    x = 179,369,606.46/15,473.57
  6. Step 6: Final answer
    x = 11,592.00

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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.