Home / 14,102.79-19,465.29-8,440.89

Finding the Fourth Proportional to 14,102.79, 19,465.29 and 8,440.89

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Solution

The fourth proportional to 14,102.79, 19,465.29 and 8,440.89 is: 11,650.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.79 : 19,465.29 = 8,440.89 : x
  2. Step 2: Convert to fraction form
    14,102.79/19,465.29 = 8,440.89/x
  3. Step 3: Cross multiply
    14,102.79x = 19,465.29 × 8,440.89
  4. Step 4: Simplify right side
    14,102.79x = 164,304,371.71
  5. Step 5: Solve for x
    x = 164,304,371.71/14,102.79
  6. Step 6: Final answer
    x = 11,650.49

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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.