Home / 13,943.84-19,242.40-7,656.08

Finding the Fourth Proportional to 13,943.84, 19,242.40 and 7,656.08

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Solution

The fourth proportional to 13,943.84, 19,242.40 and 7,656.08 is: 10,565.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.84 : 19,242.40 = 7,656.08 : x
  2. Step 2: Convert to fraction form
    13,943.84/19,242.40 = 7,656.08/x
  3. Step 3: Cross multiply
    13,943.84x = 19,242.40 × 7,656.08
  4. Step 4: Simplify right side
    13,943.84x = 147,321,353.79
  5. Step 5: Solve for x
    x = 147,321,353.79/13,943.84
  6. Step 6: Final answer
    x = 10,565.34

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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.