Home / 19,515.30-26,931.12-10,562.88

Finding the Fourth Proportional to 19,515.30, 26,931.12 and 10,562.88

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Solution

The fourth proportional to 19,515.30, 26,931.12 and 10,562.88 is: 14,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.30 : 26,931.12 = 10,562.88 : x
  2. Step 2: Convert to fraction form
    19,515.30/26,931.12 = 10,562.88/x
  3. Step 3: Cross multiply
    19,515.30x = 26,931.12 × 10,562.88
  4. Step 4: Simplify right side
    19,515.30x = 284,470,219.02
  5. Step 5: Solve for x
    x = 284,470,219.02/19,515.30
  6. Step 6: Final answer
    x = 14,576.78

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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.