Home / 14,665.16-21,981.20-7,274.92

Finding the Fourth Proportional to 14,665.16, 21,981.20 and 7,274.92

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Solution

The fourth proportional to 14,665.16, 21,981.20 and 7,274.92 is: 10,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.16 : 21,981.20 = 7,274.92 : x
  2. Step 2: Convert to fraction form
    14,665.16/21,981.20 = 7,274.92/x
  3. Step 3: Cross multiply
    14,665.16x = 21,981.20 × 7,274.92
  4. Step 4: Simplify right side
    14,665.16x = 159,911,471.50
  5. Step 5: Solve for x
    x = 159,911,471.50/14,665.16
  6. Step 6: Final answer
    x = 10,904.18

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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.