Home / 12,558.81-17,334.90-7,526.28

Finding the Fourth Proportional to 12,558.81, 17,334.90 and 7,526.28

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Solution

The fourth proportional to 12,558.81, 17,334.90 and 7,526.28 is: 10,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.81 : 17,334.90 = 7,526.28 : x
  2. Step 2: Convert to fraction form
    12,558.81/17,334.90 = 7,526.28/x
  3. Step 3: Cross multiply
    12,558.81x = 17,334.90 × 7,526.28
  4. Step 4: Simplify right side
    12,558.81x = 130,467,311.17
  5. Step 5: Solve for x
    x = 130,467,311.17/12,558.81
  6. Step 6: Final answer
    x = 10,388.51

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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.