Home / 15,369.02-21,209.52-9,081.38

Finding the Fourth Proportional to 15,369.02, 21,209.52 and 9,081.38

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Solution

The fourth proportional to 15,369.02, 21,209.52 and 9,081.38 is: 12,532.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.02 : 21,209.52 = 9,081.38 : x
  2. Step 2: Convert to fraction form
    15,369.02/21,209.52 = 9,081.38/x
  3. Step 3: Cross multiply
    15,369.02x = 21,209.52 × 9,081.38
  4. Step 4: Simplify right side
    15,369.02x = 192,611,710.74
  5. Step 5: Solve for x
    x = 192,611,710.74/15,369.02
  6. Step 6: Final answer
    x = 12,532.47

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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.