Home / 15,558.27-21,439.72-11,069.45

Finding the Fourth Proportional to 15,558.27, 21,439.72 and 11,069.45

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Solution

The fourth proportional to 15,558.27, 21,439.72 and 11,069.45 is: 15,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.27 : 21,439.72 = 11,069.45 : x
  2. Step 2: Convert to fraction form
    15,558.27/21,439.72 = 11,069.45/x
  3. Step 3: Cross multiply
    15,558.27x = 21,439.72 × 11,069.45
  4. Step 4: Simplify right side
    15,558.27x = 237,325,908.55
  5. Step 5: Solve for x
    x = 237,325,908.55/15,558.27
  6. Step 6: Final answer
    x = 15,254.00

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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.