Home / 13,995.95-19,314.39-7,708.32

Finding the Fourth Proportional to 13,995.95, 19,314.39 and 7,708.32

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Solution

The fourth proportional to 13,995.95, 19,314.39 and 7,708.32 is: 10,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.95 : 19,314.39 = 7,708.32 : x
  2. Step 2: Convert to fraction form
    13,995.95/19,314.39 = 7,708.32/x
  3. Step 3: Cross multiply
    13,995.95x = 19,314.39 × 7,708.32
  4. Step 4: Simplify right side
    13,995.95x = 148,881,498.72
  5. Step 5: Solve for x
    x = 148,881,498.72/13,995.95
  6. Step 6: Final answer
    x = 10,637.47

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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.