Home / 15,476.77-21,358.03-8,403.19

Finding the Fourth Proportional to 15,476.77, 21,358.03 and 8,403.19

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Solution

The fourth proportional to 15,476.77, 21,358.03 and 8,403.19 is: 11,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.77 : 21,358.03 = 8,403.19 : x
  2. Step 2: Convert to fraction form
    15,476.77/21,358.03 = 8,403.19/x
  3. Step 3: Cross multiply
    15,476.77x = 21,358.03 × 8,403.19
  4. Step 4: Simplify right side
    15,476.77x = 179,475,645.61
  5. Step 5: Solve for x
    x = 179,475,645.61/15,476.77
  6. Step 6: Final answer
    x = 11,596.45

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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.