Home / 12,711.12-19,058.76-4,916.40

Finding the Fourth Proportional to 12,711.12, 19,058.76 and 4,916.40

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Solution

The fourth proportional to 12,711.12, 19,058.76 and 4,916.40 is: 7,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.12 : 19,058.76 = 4,916.40 : x
  2. Step 2: Convert to fraction form
    12,711.12/19,058.76 = 4,916.40/x
  3. Step 3: Cross multiply
    12,711.12x = 19,058.76 × 4,916.40
  4. Step 4: Simplify right side
    12,711.12x = 93,700,487.66
  5. Step 5: Solve for x
    x = 93,700,487.66/12,711.12
  6. Step 6: Final answer
    x = 7,371.54

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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.