Home / 15,327.34-21,152.35-8,612.94

Finding the Fourth Proportional to 15,327.34, 21,152.35 and 8,612.94

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Solution

The fourth proportional to 15,327.34, 21,152.35 and 8,612.94 is: 11,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.34 : 21,152.35 = 8,612.94 : x
  2. Step 2: Convert to fraction form
    15,327.34/21,152.35 = 8,612.94/x
  3. Step 3: Cross multiply
    15,327.34x = 21,152.35 × 8,612.94
  4. Step 4: Simplify right side
    15,327.34x = 182,184,011.50
  5. Step 5: Solve for x
    x = 182,184,011.50/15,327.34
  6. Step 6: Final answer
    x = 11,886.21

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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.