Home / 15,855.37-21,870.51-10,197.48

Finding the Fourth Proportional to 15,855.37, 21,870.51 and 10,197.48

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Solution

The fourth proportional to 15,855.37, 21,870.51 and 10,197.48 is: 14,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855.37 : 21,870.51 = 10,197.48 : x
  2. Step 2: Convert to fraction form
    15,855.37/21,870.51 = 10,197.48/x
  3. Step 3: Cross multiply
    15,855.37x = 21,870.51 × 10,197.48
  4. Step 4: Simplify right side
    15,855.37x = 223,024,132.09
  5. Step 5: Solve for x
    x = 223,024,132.09/15,855.37
  6. Step 6: Final answer
    x = 14,066.16

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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.