Home / 15,546.12-21,461.85-12,488.10

Finding the Fourth Proportional to 15,546.12, 21,461.85 and 12,488.10

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Solution

The fourth proportional to 15,546.12, 21,461.85 and 12,488.10 is: 17,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.12 : 21,461.85 = 12,488.10 : x
  2. Step 2: Convert to fraction form
    15,546.12/21,461.85 = 12,488.10/x
  3. Step 3: Cross multiply
    15,546.12x = 21,461.85 × 12,488.10
  4. Step 4: Simplify right side
    15,546.12x = 268,017,728.99
  5. Step 5: Solve for x
    x = 268,017,728.99/15,546.12
  6. Step 6: Final answer
    x = 17,240.17

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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.