Home / 9,818.40-14,722.35-5,127.06

Finding the Fourth Proportional to 9,818.40, 14,722.35 and 5,127.06

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Solution

The fourth proportional to 9,818.40, 14,722.35 and 5,127.06 is: 7,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,818.40 : 14,722.35 = 5,127.06 : x
  2. Step 2: Convert to fraction form
    9,818.40/14,722.35 = 5,127.06/x
  3. Step 3: Cross multiply
    9,818.40x = 14,722.35 × 5,127.06
  4. Step 4: Simplify right side
    9,818.40x = 75,482,371.79
  5. Step 5: Solve for x
    x = 75,482,371.79/9,818.40
  6. Step 6: Final answer
    x = 7,687.85

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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.