Home / 15,308.72-21,126.40-8,594.84

Finding the Fourth Proportional to 15,308.72, 21,126.40 and 8,594.84

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Solution

The fourth proportional to 15,308.72, 21,126.40 and 8,594.84 is: 11,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.72 : 21,126.40 = 8,594.84 : x
  2. Step 2: Convert to fraction form
    15,308.72/21,126.40 = 8,594.84/x
  3. Step 3: Cross multiply
    15,308.72x = 21,126.40 × 8,594.84
  4. Step 4: Simplify right side
    15,308.72x = 181,578,027.78
  5. Step 5: Solve for x
    x = 181,578,027.78/15,308.72
  6. Step 6: Final answer
    x = 11,861.08

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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.