Home / 13,954.91-19,248.18-8,916.89

Finding the Fourth Proportional to 13,954.91, 19,248.18 and 8,916.89

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Solution

The fourth proportional to 13,954.91, 19,248.18 and 8,916.89 is: 12,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.91 : 19,248.18 = 8,916.89 : x
  2. Step 2: Convert to fraction form
    13,954.91/19,248.18 = 8,916.89/x
  3. Step 3: Cross multiply
    13,954.91x = 19,248.18 × 8,916.89
  4. Step 4: Simplify right side
    13,954.91x = 171,633,807.52
  5. Step 5: Solve for x
    x = 171,633,807.52/13,954.91
  6. Step 6: Final answer
    x = 12,299.17

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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.