Home / 15,628.16-21,566.64-8,913.90

Finding the Fourth Proportional to 15,628.16, 21,566.64 and 8,913.90

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Solution

The fourth proportional to 15,628.16, 21,566.64 and 8,913.90 is: 12,301.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.16 : 21,566.64 = 8,913.90 : x
  2. Step 2: Convert to fraction form
    15,628.16/21,566.64 = 8,913.90/x
  3. Step 3: Cross multiply
    15,628.16x = 21,566.64 × 8,913.90
  4. Step 4: Simplify right side
    15,628.16x = 192,242,872.30
  5. Step 5: Solve for x
    x = 192,242,872.30/15,628.16
  6. Step 6: Final answer
    x = 12,301.06

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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.