Home / 13,888.71-19,165.95-7,600.95

Finding the Fourth Proportional to 13,888.71, 19,165.95 and 7,600.95

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Solution

The fourth proportional to 13,888.71, 19,165.95 and 7,600.95 is: 10,489.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.71 : 19,165.95 = 7,600.95 : x
  2. Step 2: Convert to fraction form
    13,888.71/19,165.95 = 7,600.95/x
  3. Step 3: Cross multiply
    13,888.71x = 19,165.95 × 7,600.95
  4. Step 4: Simplify right side
    13,888.71x = 145,679,427.65
  5. Step 5: Solve for x
    x = 145,679,427.65/13,888.71
  6. Step 6: Final answer
    x = 10,489.05

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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.