Home / 15,552.28-21,475.56-13,336.12

Finding the Fourth Proportional to 15,552.28, 21,475.56 and 13,336.12

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Solution

The fourth proportional to 15,552.28, 21,475.56 and 13,336.12 is: 18,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.28 : 21,475.56 = 13,336.12 : x
  2. Step 2: Convert to fraction form
    15,552.28/21,475.56 = 13,336.12/x
  3. Step 3: Cross multiply
    15,552.28x = 21,475.56 × 13,336.12
  4. Step 4: Simplify right side
    15,552.28x = 286,400,645.23
  5. Step 5: Solve for x
    x = 286,400,645.23/15,552.28
  6. Step 6: Final answer
    x = 18,415.35

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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.