Home / 15,312.41-21,131.63-8,599.23

Finding the Fourth Proportional to 15,312.41, 21,131.63 and 8,599.23

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Solution

The fourth proportional to 15,312.41, 21,131.63 and 8,599.23 is: 11,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.41 : 21,131.63 = 8,599.23 : x
  2. Step 2: Convert to fraction form
    15,312.41/21,131.63 = 8,599.23/x
  3. Step 3: Cross multiply
    15,312.41x = 21,131.63 × 8,599.23
  4. Step 4: Simplify right side
    15,312.41x = 181,715,784.27
  5. Step 5: Solve for x
    x = 181,715,784.27/15,312.41
  6. Step 6: Final answer
    x = 11,867.22

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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.