Home / 15,617.68-21,551.88-9,326.32

Finding the Fourth Proportional to 15,617.68, 21,551.88 and 9,326.32

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Solution

The fourth proportional to 15,617.68, 21,551.88 and 9,326.32 is: 12,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.68 : 21,551.88 = 9,326.32 : x
  2. Step 2: Convert to fraction form
    15,617.68/21,551.88 = 9,326.32/x
  3. Step 3: Cross multiply
    15,617.68x = 21,551.88 × 9,326.32
  4. Step 4: Simplify right side
    15,617.68x = 200,999,729.48
  5. Step 5: Solve for x
    x = 200,999,729.48/15,617.68
  6. Step 6: Final answer
    x = 12,870.01

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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.