Home / 15,475-21,345.24-10,370.66

Finding the Fourth Proportional to 15,475, 21,345.24 and 10,370.66

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Solution

The fourth proportional to 15,475, 21,345.24 and 10,370.66 is: 14,304.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475 : 21,345.24 = 10,370.66 : x
  2. Step 2: Convert to fraction form
    15,475/21,345.24 = 10,370.66/x
  3. Step 3: Cross multiply
    15,475x = 21,345.24 × 10,370.66
  4. Step 4: Simplify right side
    15,475x = 221,364,226.66
  5. Step 5: Solve for x
    x = 221,364,226.66/15,475
  6. Step 6: Final answer
    x = 14,304.64

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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.