Home / 15,332.28-21,180.05-11,840.37

Finding the Fourth Proportional to 15,332.28, 21,180.05 and 11,840.37

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Solution

The fourth proportional to 15,332.28, 21,180.05 and 11,840.37 is: 16,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.28 : 21,180.05 = 11,840.37 : x
  2. Step 2: Convert to fraction form
    15,332.28/21,180.05 = 11,840.37/x
  3. Step 3: Cross multiply
    15,332.28x = 21,180.05 × 11,840.37
  4. Step 4: Simplify right side
    15,332.28x = 250,779,628.62
  5. Step 5: Solve for x
    x = 250,779,628.62/15,332.28
  6. Step 6: Final answer
    x = 16,356.32

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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.