Home / 18,931.42-26,126.84-10,435.08

Finding the Fourth Proportional to 18,931.42, 26,126.84 and 10,435.08

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Solution

The fourth proportional to 18,931.42, 26,126.84 and 10,435.08 is: 14,401.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.42 : 26,126.84 = 10,435.08 : x
  2. Step 2: Convert to fraction form
    18,931.42/26,126.84 = 10,435.08/x
  3. Step 3: Cross multiply
    18,931.42x = 26,126.84 × 10,435.08
  4. Step 4: Simplify right side
    18,931.42x = 272,635,665.55
  5. Step 5: Solve for x
    x = 272,635,665.55/18,931.42
  6. Step 6: Final answer
    x = 14,401.23

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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.