Home / 8,947.58-12,359.28-6,810.13

Finding the Fourth Proportional to 8,947.58, 12,359.28 and 6,810.13

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Solution

The fourth proportional to 8,947.58, 12,359.28 and 6,810.13 is: 9,406.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.58 : 12,359.28 = 6,810.13 : x
  2. Step 2: Convert to fraction form
    8,947.58/12,359.28 = 6,810.13/x
  3. Step 3: Cross multiply
    8,947.58x = 12,359.28 × 6,810.13
  4. Step 4: Simplify right side
    8,947.58x = 84,168,241.71
  5. Step 5: Solve for x
    x = 84,168,241.71/8,947.58
  6. Step 6: Final answer
    x = 9,406.82

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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.