Home / 14,717.84-20,312.46-8,430.22

Finding the Fourth Proportional to 14,717.84, 20,312.46 and 8,430.22

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Solution

The fourth proportional to 14,717.84, 20,312.46 and 8,430.22 is: 11,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,717.84 : 20,312.46 = 8,430.22 : x
  2. Step 2: Convert to fraction form
    14,717.84/20,312.46 = 8,430.22/x
  3. Step 3: Cross multiply
    14,717.84x = 20,312.46 × 8,430.22
  4. Step 4: Simplify right side
    14,717.84x = 171,238,506.54
  5. Step 5: Solve for x
    x = 171,238,506.54/14,717.84
  6. Step 6: Final answer
    x = 11,634.76

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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.