Home / 15,353.55-21,179.48-9,064.71

Finding the Fourth Proportional to 15,353.55, 21,179.48 and 9,064.71

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Solution

The fourth proportional to 15,353.55, 21,179.48 and 9,064.71 is: 12,504.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,353.55 : 21,179.48 = 9,064.71 : x
  2. Step 2: Convert to fraction form
    15,353.55/21,179.48 = 9,064.71/x
  3. Step 3: Cross multiply
    15,353.55x = 21,179.48 × 9,064.71
  4. Step 4: Simplify right side
    15,353.55x = 191,985,798.83
  5. Step 5: Solve for x
    x = 191,985,798.83/15,353.55
  6. Step 6: Final answer
    x = 12,504.33

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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.