Home / 15,743.13-21,722.76-9,455.64

Finding the Fourth Proportional to 15,743.13, 21,722.76 and 9,455.64

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Solution

The fourth proportional to 15,743.13, 21,722.76 and 9,455.64 is: 13,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.13 : 21,722.76 = 9,455.64 : x
  2. Step 2: Convert to fraction form
    15,743.13/21,722.76 = 9,455.64/x
  3. Step 3: Cross multiply
    15,743.13x = 21,722.76 × 9,455.64
  4. Step 4: Simplify right side
    15,743.13x = 205,402,598.37
  5. Step 5: Solve for x
    x = 205,402,598.37/15,743.13
  6. Step 6: Final answer
    x = 13,047.13

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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.