Home / 13,900.19-19,182.15-7,526.79

Finding the Fourth Proportional to 13,900.19, 19,182.15 and 7,526.79

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Solution

The fourth proportional to 13,900.19, 19,182.15 and 7,526.79 is: 10,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.19 : 19,182.15 = 7,526.79 : x
  2. Step 2: Convert to fraction form
    13,900.19/19,182.15 = 7,526.79/x
  3. Step 3: Cross multiply
    13,900.19x = 19,182.15 × 7,526.79
  4. Step 4: Simplify right side
    13,900.19x = 144,380,014.80
  5. Step 5: Solve for x
    x = 144,380,014.80/13,900.19
  6. Step 6: Final answer
    x = 10,386.91

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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.