Home / 12,501.69-17,208.45-11,320.71

Finding the Fourth Proportional to 12,501.69, 17,208.45 and 11,320.71

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Solution

The fourth proportional to 12,501.69, 17,208.45 and 11,320.71 is: 15,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.69 : 17,208.45 = 11,320.71 : x
  2. Step 2: Convert to fraction form
    12,501.69/17,208.45 = 11,320.71/x
  3. Step 3: Cross multiply
    12,501.69x = 17,208.45 × 11,320.71
  4. Step 4: Simplify right side
    12,501.69x = 194,811,872.00
  5. Step 5: Solve for x
    x = 194,811,872.00/12,501.69
  6. Step 6: Final answer
    x = 15,582.84

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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.