Home / 15,551.04-21,472.20-10,253.28

Finding the Fourth Proportional to 15,551.04, 21,472.20 and 10,253.28

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Solution

The fourth proportional to 15,551.04, 21,472.20 and 10,253.28 is: 14,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.04 : 21,472.20 = 10,253.28 : x
  2. Step 2: Convert to fraction form
    15,551.04/21,472.20 = 10,253.28/x
  3. Step 3: Cross multiply
    15,551.04x = 21,472.20 × 10,253.28
  4. Step 4: Simplify right side
    15,551.04x = 220,160,478.82
  5. Step 5: Solve for x
    x = 220,160,478.82/15,551.04
  6. Step 6: Final answer
    x = 14,157.28

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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.