Home / 14,688.06-21,908.10-12,471.90

Finding the Fourth Proportional to 14,688.06, 21,908.10 and 12,471.90

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Solution

The fourth proportional to 14,688.06, 21,908.10 and 12,471.90 is: 18,602.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.06 : 21,908.10 = 12,471.90 : x
  2. Step 2: Convert to fraction form
    14,688.06/21,908.10 = 12,471.90/x
  3. Step 3: Cross multiply
    14,688.06x = 21,908.10 × 12,471.90
  4. Step 4: Simplify right side
    14,688.06x = 273,235,632.39
  5. Step 5: Solve for x
    x = 273,235,632.39/14,688.06
  6. Step 6: Final answer
    x = 18,602.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.