Home / 14,447.71-21,688.85-8,607.07

Finding the Fourth Proportional to 14,447.71, 21,688.85 and 8,607.07

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Solution

The fourth proportional to 14,447.71, 21,688.85 and 8,607.07 is: 12,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.71 : 21,688.85 = 8,607.07 : x
  2. Step 2: Convert to fraction form
    14,447.71/21,688.85 = 8,607.07/x
  3. Step 3: Cross multiply
    14,447.71x = 21,688.85 × 8,607.07
  4. Step 4: Simplify right side
    14,447.71x = 186,677,450.17
  5. Step 5: Solve for x
    x = 186,677,450.17/14,447.71
  6. Step 6: Final answer
    x = 12,920.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.