Home / 15,291.42-22,900.10-7,775.22

Finding the Fourth Proportional to 15,291.42, 22,900.10 and 7,775.22

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Solution

The fourth proportional to 15,291.42, 22,900.10 and 7,775.22 is: 11,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.42 : 22,900.10 = 7,775.22 : x
  2. Step 2: Convert to fraction form
    15,291.42/22,900.10 = 7,775.22/x
  3. Step 3: Cross multiply
    15,291.42x = 22,900.10 × 7,775.22
  4. Step 4: Simplify right side
    15,291.42x = 178,053,276.65
  5. Step 5: Solve for x
    x = 178,053,276.65/15,291.42
  6. Step 6: Final answer
    x = 11,644.00

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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.