Home / 14,079.67-21,117.65-6,688.82

Finding the Fourth Proportional to 14,079.67, 21,117.65 and 6,688.82

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Solution

The fourth proportional to 14,079.67, 21,117.65 and 6,688.82 is: 10,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.67 : 21,117.65 = 6,688.82 : x
  2. Step 2: Convert to fraction form
    14,079.67/21,117.65 = 6,688.82/x
  3. Step 3: Cross multiply
    14,079.67x = 21,117.65 × 6,688.82
  4. Step 4: Simplify right side
    14,079.67x = 141,252,179.02
  5. Step 5: Solve for x
    x = 141,252,179.02/14,079.67
  6. Step 6: Final answer
    x = 10,032.35

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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.