Home / 14,931.60-20,606.64-9,887.04

Finding the Fourth Proportional to 14,931.60, 20,606.64 and 9,887.04

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Solution

The fourth proportional to 14,931.60, 20,606.64 and 9,887.04 is: 13,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.60 : 20,606.64 = 9,887.04 : x
  2. Step 2: Convert to fraction form
    14,931.60/20,606.64 = 9,887.04/x
  3. Step 3: Cross multiply
    14,931.60x = 20,606.64 × 9,887.04
  4. Step 4: Simplify right side
    14,931.60x = 203,738,673.95
  5. Step 5: Solve for x
    x = 203,738,673.95/14,931.60
  6. Step 6: Final answer
    x = 13,644.80

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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.