Home / 15,603.36-21,532.48-8,529.92

Finding the Fourth Proportional to 15,603.36, 21,532.48 and 8,529.92

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Solution

The fourth proportional to 15,603.36, 21,532.48 and 8,529.92 is: 11,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.36 : 21,532.48 = 8,529.92 : x
  2. Step 2: Convert to fraction form
    15,603.36/21,532.48 = 8,529.92/x
  3. Step 3: Cross multiply
    15,603.36x = 21,532.48 × 8,529.92
  4. Step 4: Simplify right side
    15,603.36x = 183,670,331.80
  5. Step 5: Solve for x
    x = 183,670,331.80/15,603.36
  6. Step 6: Final answer
    x = 11,771.20

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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.