Home / 15,444.24-21,312-8,730.12

Finding the Fourth Proportional to 15,444.24, 21,312 and 8,730.12

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Solution

The fourth proportional to 15,444.24, 21,312 and 8,730.12 is: 12,046.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.24 : 21,312 = 8,730.12 : x
  2. Step 2: Convert to fraction form
    15,444.24/21,312 = 8,730.12/x
  3. Step 3: Cross multiply
    15,444.24x = 21,312 × 8,730.12
  4. Step 4: Simplify right side
    15,444.24x = 186,056,317.44
  5. Step 5: Solve for x
    x = 186,056,317.44/15,444.24
  6. Step 6: Final answer
    x = 12,046.97

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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.