Home / 15,240.90-21,032.47-8,526.64

Finding the Fourth Proportional to 15,240.90, 21,032.47 and 8,526.64

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Solution

The fourth proportional to 15,240.90, 21,032.47 and 8,526.64 is: 11,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.90 : 21,032.47 = 8,526.64 : x
  2. Step 2: Convert to fraction form
    15,240.90/21,032.47 = 8,526.64/x
  3. Step 3: Cross multiply
    15,240.90x = 21,032.47 × 8,526.64
  4. Step 4: Simplify right side
    15,240.90x = 179,336,300.00
  5. Step 5: Solve for x
    x = 179,336,300.00/15,240.90
  6. Step 6: Final answer
    x = 11,766.78

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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.