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Finding the Fourth Proportional to 14,470.16, 19,959.95 and 12,786.17

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Solution

The fourth proportional to 14,470.16, 19,959.95 and 12,786.17 is: 17,637.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,470.16 : 19,959.95 = 12,786.17 : x
  2. Step 2: Convert to fraction form
    14,470.16/19,959.95 = 12,786.17/x
  3. Step 3: Cross multiply
    14,470.16x = 19,959.95 × 12,786.17
  4. Step 4: Simplify right side
    14,470.16x = 255,211,246.06
  5. Step 5: Solve for x
    x = 255,211,246.06/14,470.16
  6. Step 6: Final answer
    x = 17,637.08

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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.