Home / 12,357.40-17,052.13-7,320.77

Finding the Fourth Proportional to 12,357.40, 17,052.13 and 7,320.77

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Solution

The fourth proportional to 12,357.40, 17,052.13 and 7,320.77 is: 10,102.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.40 : 17,052.13 = 7,320.77 : x
  2. Step 2: Convert to fraction form
    12,357.40/17,052.13 = 7,320.77/x
  3. Step 3: Cross multiply
    12,357.40x = 17,052.13 × 7,320.77
  4. Step 4: Simplify right side
    12,357.40x = 124,834,709.58
  5. Step 5: Solve for x
    x = 124,834,709.58/12,357.40
  6. Step 6: Final answer
    x = 10,102.02

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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.