Home / 15,326.42-21,149.88-9,368.06

Finding the Fourth Proportional to 15,326.42, 21,149.88 and 9,368.06

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Solution

The fourth proportional to 15,326.42, 21,149.88 and 9,368.06 is: 12,927.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.42 : 21,149.88 = 9,368.06 : x
  2. Step 2: Convert to fraction form
    15,326.42/21,149.88 = 9,368.06/x
  3. Step 3: Cross multiply
    15,326.42x = 21,149.88 × 9,368.06
  4. Step 4: Simplify right side
    15,326.42x = 198,133,344.83
  5. Step 5: Solve for x
    x = 198,133,344.83/15,326.42
  6. Step 6: Final answer
    x = 12,927.57

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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.