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Finding the Fourth Proportional to 13,800.77, 19,045.53 and 7,752.08

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Solution

The fourth proportional to 13,800.77, 19,045.53 and 7,752.08 is: 10,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.77 : 19,045.53 = 7,752.08 : x
  2. Step 2: Convert to fraction form
    13,800.77/19,045.53 = 7,752.08/x
  3. Step 3: Cross multiply
    13,800.77x = 19,045.53 × 7,752.08
  4. Step 4: Simplify right side
    13,800.77x = 147,642,376.97
  5. Step 5: Solve for x
    x = 147,642,376.97/13,800.77
  6. Step 6: Final answer
    x = 10,698.13

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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.