Home / 14,688.50-20,260.90-8,715.94

Finding the Fourth Proportional to 14,688.50, 20,260.90 and 8,715.94

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Solution

The fourth proportional to 14,688.50, 20,260.90 and 8,715.94 is: 12,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.50 : 20,260.90 = 8,715.94 : x
  2. Step 2: Convert to fraction form
    14,688.50/20,260.90 = 8,715.94/x
  3. Step 3: Cross multiply
    14,688.50x = 20,260.90 × 8,715.94
  4. Step 4: Simplify right side
    14,688.50x = 176,592,788.75
  5. Step 5: Solve for x
    x = 176,592,788.75/14,688.50
  6. Step 6: Final answer
    x = 12,022.52

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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.