Home / 15,739.50-21,718.56-10,646.13

Finding the Fourth Proportional to 15,739.50, 21,718.56 and 10,646.13

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Solution

The fourth proportional to 15,739.50, 21,718.56 and 10,646.13 is: 14,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.50 : 21,718.56 = 10,646.13 : x
  2. Step 2: Convert to fraction form
    15,739.50/21,718.56 = 10,646.13/x
  3. Step 3: Cross multiply
    15,739.50x = 21,718.56 × 10,646.13
  4. Step 4: Simplify right side
    15,739.50x = 231,218,613.17
  5. Step 5: Solve for x
    x = 231,218,613.17/15,739.50
  6. Step 6: Final answer
    x = 14,690.34

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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.