Home / 15,646.84-21,587.31-8,927.64

Finding the Fourth Proportional to 15,646.84, 21,587.31 and 8,927.64

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Solution

The fourth proportional to 15,646.84, 21,587.31 and 8,927.64 is: 12,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646.84 : 21,587.31 = 8,927.64 : x
  2. Step 2: Convert to fraction form
    15,646.84/21,587.31 = 8,927.64/x
  3. Step 3: Cross multiply
    15,646.84x = 21,587.31 × 8,927.64
  4. Step 4: Simplify right side
    15,646.84x = 192,723,732.25
  5. Step 5: Solve for x
    x = 192,723,732.25/15,646.84
  6. Step 6: Final answer
    x = 12,317.10

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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.