Home / 14,784.68-20,403.46-8,070.76

Finding the Fourth Proportional to 14,784.68, 20,403.46 and 8,070.76

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Solution

The fourth proportional to 14,784.68, 20,403.46 and 8,070.76 is: 11,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.68 : 20,403.46 = 8,070.76 : x
  2. Step 2: Convert to fraction form
    14,784.68/20,403.46 = 8,070.76/x
  3. Step 3: Cross multiply
    14,784.68x = 20,403.46 × 8,070.76
  4. Step 4: Simplify right side
    14,784.68x = 164,671,428.83
  5. Step 5: Solve for x
    x = 164,671,428.83/14,784.68
  6. Step 6: Final answer
    x = 11,137.98

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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.