Home / 7,359.72-10,131.30-6,471.40

Finding the Fourth Proportional to 7,359.72, 10,131.30 and 6,471.40

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Solution

The fourth proportional to 7,359.72, 10,131.30 and 6,471.40 is: 8,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,359.72 : 10,131.30 = 6,471.40 : x
  2. Step 2: Convert to fraction form
    7,359.72/10,131.30 = 6,471.40/x
  3. Step 3: Cross multiply
    7,359.72x = 10,131.30 × 6,471.40
  4. Step 4: Simplify right side
    7,359.72x = 65,563,694.82
  5. Step 5: Solve for x
    x = 65,563,694.82/7,359.72
  6. Step 6: Final answer
    x = 8,908.45

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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.