Home / 12,565.36-17,340.30-7,852.42

Finding the Fourth Proportional to 12,565.36, 17,340.30 and 7,852.42

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Solution

The fourth proportional to 12,565.36, 17,340.30 and 7,852.42 is: 10,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.36 : 17,340.30 = 7,852.42 : x
  2. Step 2: Convert to fraction form
    12,565.36/17,340.30 = 7,852.42/x
  3. Step 3: Cross multiply
    12,565.36x = 17,340.30 × 7,852.42
  4. Step 4: Simplify right side
    12,565.36x = 136,163,318.53
  5. Step 5: Solve for x
    x = 136,163,318.53/12,565.36
  6. Step 6: Final answer
    x = 10,836.40

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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.