Home / 12,711.61-19,066.57-4,391.74

Finding the Fourth Proportional to 12,711.61, 19,066.57 and 4,391.74

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Solution

The fourth proportional to 12,711.61, 19,066.57 and 4,391.74 is: 6,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.61 : 19,066.57 = 4,391.74 : x
  2. Step 2: Convert to fraction form
    12,711.61/19,066.57 = 4,391.74/x
  3. Step 3: Cross multiply
    12,711.61x = 19,066.57 × 4,391.74
  4. Step 4: Simplify right side
    12,711.61x = 83,735,430.99
  5. Step 5: Solve for x
    x = 83,735,430.99/12,711.61
  6. Step 6: Final answer
    x = 6,587.32

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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.