Home / 15,603.49-21,533.16-8,529.92

Finding the Fourth Proportional to 15,603.49, 21,533.16 and 8,529.92

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Solution

The fourth proportional to 15,603.49, 21,533.16 and 8,529.92 is: 11,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.49 : 21,533.16 = 8,529.92 : x
  2. Step 2: Convert to fraction form
    15,603.49/21,533.16 = 8,529.92/x
  3. Step 3: Cross multiply
    15,603.49x = 21,533.16 × 8,529.92
  4. Step 4: Simplify right side
    15,603.49x = 183,676,132.15
  5. Step 5: Solve for x
    x = 183,676,132.15/15,603.49
  6. Step 6: Final answer
    x = 11,771.48

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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.