Home / 8,947.45-12,359.10-6,810.00

Finding the Fourth Proportional to 8,947.45, 12,359.10 and 6,810.00

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Solution

The fourth proportional to 8,947.45, 12,359.10 and 6,810.00 is: 9,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.45 : 12,359.10 = 6,810.00 : x
  2. Step 2: Convert to fraction form
    8,947.45/12,359.10 = 6,810.00/x
  3. Step 3: Cross multiply
    8,947.45x = 12,359.10 × 6,810.00
  4. Step 4: Simplify right side
    8,947.45x = 84,165,450.19
  5. Step 5: Solve for x
    x = 84,165,450.19/8,947.45
  6. Step 6: Final answer
    x = 9,406.64

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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.