Home / 12,947.08-17,867.70-9,797.80

Finding the Fourth Proportional to 12,947.08, 17,867.70 and 9,797.80

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Solution

The fourth proportional to 12,947.08, 17,867.70 and 9,797.80 is: 13,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.08 : 17,867.70 = 9,797.80 : x
  2. Step 2: Convert to fraction form
    12,947.08/17,867.70 = 9,797.80/x
  3. Step 3: Cross multiply
    12,947.08x = 17,867.70 × 9,797.80
  4. Step 4: Simplify right side
    12,947.08x = 175,064,151.06
  5. Step 5: Solve for x
    x = 175,064,151.06/12,947.08
  6. Step 6: Final answer
    x = 13,521.52

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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.