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Finding the Fourth Proportional to 14,924, 20,595.12 and 8,640.08

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Solution

The fourth proportional to 14,924, 20,595.12 and 8,640.08 is: 11,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,924 : 20,595.12 = 8,640.08 : x
  2. Step 2: Convert to fraction form
    14,924/20,595.12 = 8,640.08/x
  3. Step 3: Cross multiply
    14,924x = 20,595.12 × 8,640.08
  4. Step 4: Simplify right side
    14,924x = 177,943,484.41
  5. Step 5: Solve for x
    x = 177,943,484.41/14,924
  6. Step 6: Final answer
    x = 11,923.31

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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.