Home / 14,898.89-20,560.85-8,438.00

Finding the Fourth Proportional to 14,898.89, 20,560.85 and 8,438.00

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Solution

The fourth proportional to 14,898.89, 20,560.85 and 8,438.00 is: 11,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,898.89 : 20,560.85 = 8,438.00 : x
  2. Step 2: Convert to fraction form
    14,898.89/20,560.85 = 8,438.00/x
  3. Step 3: Cross multiply
    14,898.89x = 20,560.85 × 8,438.00
  4. Step 4: Simplify right side
    14,898.89x = 173,492,461.51
  5. Step 5: Solve for x
    x = 173,492,461.51/14,898.89
  6. Step 6: Final answer
    x = 11,644.66

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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.