Home / 15,302.32-21,118.73-9,337.98

Finding the Fourth Proportional to 15,302.32, 21,118.73 and 9,337.98

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Solution

The fourth proportional to 15,302.32, 21,118.73 and 9,337.98 is: 12,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.32 : 21,118.73 = 9,337.98 : x
  2. Step 2: Convert to fraction form
    15,302.32/21,118.73 = 9,337.98/x
  3. Step 3: Cross multiply
    15,302.32x = 21,118.73 × 9,337.98
  4. Step 4: Simplify right side
    15,302.32x = 197,206,310.87
  5. Step 5: Solve for x
    x = 197,206,310.87/15,302.32
  6. Step 6: Final answer
    x = 12,887.35

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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.