Home / 13,995.64-19,313.96-7,708.02

Finding the Fourth Proportional to 13,995.64, 19,313.96 and 7,708.02

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Solution

The fourth proportional to 13,995.64, 19,313.96 and 7,708.02 is: 10,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.64 : 19,313.96 = 7,708.02 : x
  2. Step 2: Convert to fraction form
    13,995.64/19,313.96 = 7,708.02/x
  3. Step 3: Cross multiply
    13,995.64x = 19,313.96 × 7,708.02
  4. Step 4: Simplify right side
    13,995.64x = 148,872,389.96
  5. Step 5: Solve for x
    x = 148,872,389.96/13,995.64
  6. Step 6: Final answer
    x = 10,637.05

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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.