Home / 15,022.14-20,729.41-8,307.10

Finding the Fourth Proportional to 15,022.14, 20,729.41 and 8,307.10

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Solution

The fourth proportional to 15,022.14, 20,729.41 and 8,307.10 is: 11,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.14 : 20,729.41 = 8,307.10 : x
  2. Step 2: Convert to fraction form
    15,022.14/20,729.41 = 8,307.10/x
  3. Step 3: Cross multiply
    15,022.14x = 20,729.41 × 8,307.10
  4. Step 4: Simplify right side
    15,022.14x = 172,201,281.81
  5. Step 5: Solve for x
    x = 172,201,281.81/15,022.14
  6. Step 6: Final answer
    x = 11,463.17

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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.