Home / 15,603.23-21,532.32-8,529.63

Finding the Fourth Proportional to 15,603.23, 21,532.32 and 8,529.63

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Solution

The fourth proportional to 15,603.23, 21,532.32 and 8,529.63 is: 11,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.23 : 21,532.32 = 8,529.63 : x
  2. Step 2: Convert to fraction form
    15,603.23/21,532.32 = 8,529.63/x
  3. Step 3: Cross multiply
    15,603.23x = 21,532.32 × 8,529.63
  4. Step 4: Simplify right side
    15,603.23x = 183,662,722.64
  5. Step 5: Solve for x
    x = 183,662,722.64/15,603.23
  6. Step 6: Final answer
    x = 11,770.82

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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.