Home / 12,155.84-18,226.45-4,751.47

Finding the Fourth Proportional to 12,155.84, 18,226.45 and 4,751.47

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Solution

The fourth proportional to 12,155.84, 18,226.45 and 4,751.47 is: 7,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.84 : 18,226.45 = 4,751.47 : x
  2. Step 2: Convert to fraction form
    12,155.84/18,226.45 = 4,751.47/x
  3. Step 3: Cross multiply
    12,155.84x = 18,226.45 × 4,751.47
  4. Step 4: Simplify right side
    12,155.84x = 86,602,430.38
  5. Step 5: Solve for x
    x = 86,602,430.38/12,155.84
  6. Step 6: Final answer
    x = 7,124.35

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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.