Home / 14,160.40-21,240.96-7,916.92

Finding the Fourth Proportional to 14,160.40, 21,240.96 and 7,916.92

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Solution

The fourth proportional to 14,160.40, 21,240.96 and 7,916.92 is: 11,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.40 : 21,240.96 = 7,916.92 : x
  2. Step 2: Convert to fraction form
    14,160.40/21,240.96 = 7,916.92/x
  3. Step 3: Cross multiply
    14,160.40x = 21,240.96 × 7,916.92
  4. Step 4: Simplify right side
    14,160.40x = 168,162,981.04
  5. Step 5: Solve for x
    x = 168,162,981.04/14,160.40
  6. Step 6: Final answer
    x = 11,875.58

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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.