Home / 14,931.61-20,604.48-8,558.12

Finding the Fourth Proportional to 14,931.61, 20,604.48 and 8,558.12

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Solution

The fourth proportional to 14,931.61, 20,604.48 and 8,558.12 is: 11,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.61 : 20,604.48 = 8,558.12 : x
  2. Step 2: Convert to fraction form
    14,931.61/20,604.48 = 8,558.12/x
  3. Step 3: Cross multiply
    14,931.61x = 20,604.48 × 8,558.12
  4. Step 4: Simplify right side
    14,931.61x = 176,335,631.80
  5. Step 5: Solve for x
    x = 176,335,631.80/14,931.61
  6. Step 6: Final answer
    x = 11,809.55

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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.