Home / 14,631.45-20,191.25-7,916.93

Finding the Fourth Proportional to 14,631.45, 20,191.25 and 7,916.93

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Solution

The fourth proportional to 14,631.45, 20,191.25 and 7,916.93 is: 10,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.45 : 20,191.25 = 7,916.93 : x
  2. Step 2: Convert to fraction form
    14,631.45/20,191.25 = 7,916.93/x
  3. Step 3: Cross multiply
    14,631.45x = 20,191.25 × 7,916.93
  4. Step 4: Simplify right side
    14,631.45x = 159,852,707.42
  5. Step 5: Solve for x
    x = 159,852,707.42/14,631.45
  6. Step 6: Final answer
    x = 10,925.28

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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.