Home / 12,383.06-18,574.40-4,987.34

Finding the Fourth Proportional to 12,383.06, 18,574.40 and 4,987.34

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Solution

The fourth proportional to 12,383.06, 18,574.40 and 4,987.34 is: 7,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.06 : 18,574.40 = 4,987.34 : x
  2. Step 2: Convert to fraction form
    12,383.06/18,574.40 = 4,987.34/x
  3. Step 3: Cross multiply
    12,383.06x = 18,574.40 × 4,987.34
  4. Step 4: Simplify right side
    12,383.06x = 92,636,848.10
  5. Step 5: Solve for x
    x = 92,636,848.10/12,383.06
  6. Step 6: Final answer
    x = 7,480.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.