Home / 15,864.09-21,895.16-9,148.52

Finding the Fourth Proportional to 15,864.09, 21,895.16 and 9,148.52

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Solution

The fourth proportional to 15,864.09, 21,895.16 and 9,148.52 is: 12,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864.09 : 21,895.16 = 9,148.52 : x
  2. Step 2: Convert to fraction form
    15,864.09/21,895.16 = 9,148.52/x
  3. Step 3: Cross multiply
    15,864.09x = 21,895.16 × 9,148.52
  4. Step 4: Simplify right side
    15,864.09x = 200,308,153.94
  5. Step 5: Solve for x
    x = 200,308,153.94/15,864.09
  6. Step 6: Final answer
    x = 12,626.51

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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.