Home / 18,941.08-26,133.42-10,981.72

Finding the Fourth Proportional to 18,941.08, 26,133.42 and 10,981.72

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Solution

The fourth proportional to 18,941.08, 26,133.42 and 10,981.72 is: 15,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.08 : 26,133.42 = 10,981.72 : x
  2. Step 2: Convert to fraction form
    18,941.08/26,133.42 = 10,981.72/x
  3. Step 3: Cross multiply
    18,941.08x = 26,133.42 × 10,981.72
  4. Step 4: Simplify right side
    18,941.08x = 286,989,901.08
  5. Step 5: Solve for x
    x = 286,989,901.08/18,941.08
  6. Step 6: Final answer
    x = 15,151.72

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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.