Home / 19,752.17-27,276.28-12,690.99

Finding the Fourth Proportional to 19,752.17, 27,276.28 and 12,690.99

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Solution

The fourth proportional to 19,752.17, 27,276.28 and 12,690.99 is: 17,525.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,752.17 : 27,276.28 = 12,690.99 : x
  2. Step 2: Convert to fraction form
    19,752.17/27,276.28 = 12,690.99/x
  3. Step 3: Cross multiply
    19,752.17x = 27,276.28 × 12,690.99
  4. Step 4: Simplify right side
    19,752.17x = 346,162,964.99
  5. Step 5: Solve for x
    x = 346,162,964.99/19,752.17
  6. Step 6: Final answer
    x = 17,525.32

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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.