Home / 7,437.28-10,271.84-6,440.96

Finding the Fourth Proportional to 7,437.28, 10,271.84 and 6,440.96

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Solution

The fourth proportional to 7,437.28, 10,271.84 and 6,440.96 is: 8,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437.28 : 10,271.84 = 6,440.96 : x
  2. Step 2: Convert to fraction form
    7,437.28/10,271.84 = 6,440.96/x
  3. Step 3: Cross multiply
    7,437.28x = 10,271.84 × 6,440.96
  4. Step 4: Simplify right side
    7,437.28x = 66,160,510.57
  5. Step 5: Solve for x
    x = 66,160,510.57/7,437.28
  6. Step 6: Final answer
    x = 8,895.79

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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.