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Finding the Fourth Proportional to 15,339.80, 23,009.70 and 10,674.20

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Solution

The fourth proportional to 15,339.80, 23,009.70 and 10,674.20 is: 16,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.80 : 23,009.70 = 10,674.20 : x
  2. Step 2: Convert to fraction form
    15,339.80/23,009.70 = 10,674.20/x
  3. Step 3: Cross multiply
    15,339.80x = 23,009.70 × 10,674.20
  4. Step 4: Simplify right side
    15,339.80x = 245,610,139.74
  5. Step 5: Solve for x
    x = 245,610,139.74/15,339.80
  6. Step 6: Final answer
    x = 16,011.30

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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.