Home / 15,643.14-21,587.40-8,473.07

Finding the Fourth Proportional to 15,643.14, 21,587.40 and 8,473.07

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Solution

The fourth proportional to 15,643.14, 21,587.40 and 8,473.07 is: 11,692.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.14 : 21,587.40 = 8,473.07 : x
  2. Step 2: Convert to fraction form
    15,643.14/21,587.40 = 8,473.07/x
  3. Step 3: Cross multiply
    15,643.14x = 21,587.40 × 8,473.07
  4. Step 4: Simplify right side
    15,643.14x = 182,911,443.38
  5. Step 5: Solve for x
    x = 182,911,443.38/15,643.14
  6. Step 6: Final answer
    x = 11,692.76

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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.