Home / 10,405.56-14,359.68-5,689.84

Finding the Fourth Proportional to 10,405.56, 14,359.68 and 5,689.84

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Solution

The fourth proportional to 10,405.56, 14,359.68 and 5,689.84 is: 7,851.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.56 : 14,359.68 = 5,689.84 : x
  2. Step 2: Convert to fraction form
    10,405.56/14,359.68 = 5,689.84/x
  3. Step 3: Cross multiply
    10,405.56x = 14,359.68 × 5,689.84
  4. Step 4: Simplify right side
    10,405.56x = 81,704,281.65
  5. Step 5: Solve for x
    x = 81,704,281.65/10,405.56
  6. Step 6: Final answer
    x = 7,851.98

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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.