Home / 15,668.49-21,610.29-9,703.47

Finding the Fourth Proportional to 15,668.49, 21,610.29 and 9,703.47

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Solution

The fourth proportional to 15,668.49, 21,610.29 and 9,703.47 is: 13,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.49 : 21,610.29 = 9,703.47 : x
  2. Step 2: Convert to fraction form
    15,668.49/21,610.29 = 9,703.47/x
  3. Step 3: Cross multiply
    15,668.49x = 21,610.29 × 9,703.47
  4. Step 4: Simplify right side
    15,668.49x = 209,694,800.71
  5. Step 5: Solve for x
    x = 209,694,800.71/15,668.49
  6. Step 6: Final answer
    x = 13,383.22

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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.