Home / 14,631.33-20,191.09-7,916.81

Finding the Fourth Proportional to 14,631.33, 20,191.09 and 7,916.81

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Solution

The fourth proportional to 14,631.33, 20,191.09 and 7,916.81 is: 10,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.33 : 20,191.09 = 7,916.81 : x
  2. Step 2: Convert to fraction form
    14,631.33/20,191.09 = 7,916.81/x
  3. Step 3: Cross multiply
    14,631.33x = 20,191.09 × 7,916.81
  4. Step 4: Simplify right side
    14,631.33x = 159,849,023.22
  5. Step 5: Solve for x
    x = 159,849,023.22/14,631.33
  6. Step 6: Final answer
    x = 10,925.12

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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.