Home / 7,939.40-10,956.80-4,402.53

Finding the Fourth Proportional to 7,939.40, 10,956.80 and 4,402.53

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Solution

The fourth proportional to 7,939.40, 10,956.80 and 4,402.53 is: 6,075.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.40 : 10,956.80 = 4,402.53 : x
  2. Step 2: Convert to fraction form
    7,939.40/10,956.80 = 4,402.53/x
  3. Step 3: Cross multiply
    7,939.40x = 10,956.80 × 4,402.53
  4. Step 4: Simplify right side
    7,939.40x = 48,237,651.71
  5. Step 5: Solve for x
    x = 48,237,651.71/7,939.40
  6. Step 6: Final answer
    x = 6,075.73

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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.