Home / 15,533.04-21,436.32-10,223.76

Finding the Fourth Proportional to 15,533.04, 21,436.32 and 10,223.76

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Solution

The fourth proportional to 15,533.04, 21,436.32 and 10,223.76 is: 14,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.04 : 21,436.32 = 10,223.76 : x
  2. Step 2: Convert to fraction form
    15,533.04/21,436.32 = 10,223.76/x
  3. Step 3: Cross multiply
    15,533.04x = 21,436.32 × 10,223.76
  4. Step 4: Simplify right side
    15,533.04x = 219,159,790.96
  5. Step 5: Solve for x
    x = 219,159,790.96/15,533.04
  6. Step 6: Final answer
    x = 14,109.27

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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.