Home / 15,368.10-21,207.74-8,653.72

Finding the Fourth Proportional to 15,368.10, 21,207.74 and 8,653.72

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Solution

The fourth proportional to 15,368.10, 21,207.74 and 8,653.72 is: 11,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.10 : 21,207.74 = 8,653.72 : x
  2. Step 2: Convert to fraction form
    15,368.10/21,207.74 = 8,653.72/x
  3. Step 3: Cross multiply
    15,368.10x = 21,207.74 × 8,653.72
  4. Step 4: Simplify right side
    15,368.10x = 183,525,843.79
  5. Step 5: Solve for x
    x = 183,525,843.79/15,368.10
  6. Step 6: Final answer
    x = 11,942.00

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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.