Home / 15,235.05-21,033.45-9,574.59

Finding the Fourth Proportional to 15,235.05, 21,033.45 and 9,574.59

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Solution

The fourth proportional to 15,235.05, 21,033.45 and 9,574.59 is: 13,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.05 : 21,033.45 = 9,574.59 : x
  2. Step 2: Convert to fraction form
    15,235.05/21,033.45 = 9,574.59/x
  3. Step 3: Cross multiply
    15,235.05x = 21,033.45 × 9,574.59
  4. Step 4: Simplify right side
    15,235.05x = 201,386,660.04
  5. Step 5: Solve for x
    x = 201,386,660.04/15,235.05
  6. Step 6: Final answer
    x = 13,218.64

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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.