Home / 12,826.32-17,700.36-7,237.20

Finding the Fourth Proportional to 12,826.32, 17,700.36 and 7,237.20

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Solution

The fourth proportional to 12,826.32, 17,700.36 and 7,237.20 is: 9,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.32 : 17,700.36 = 7,237.20 : x
  2. Step 2: Convert to fraction form
    12,826.32/17,700.36 = 7,237.20/x
  3. Step 3: Cross multiply
    12,826.32x = 17,700.36 × 7,237.20
  4. Step 4: Simplify right side
    12,826.32x = 128,101,045.39
  5. Step 5: Solve for x
    x = 128,101,045.39/12,826.32
  6. Step 6: Final answer
    x = 9,987.36

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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.