Home / 13,935.15-19,230.54-7,966.98

Finding the Fourth Proportional to 13,935.15, 19,230.54 and 7,966.98

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Solution

The fourth proportional to 13,935.15, 19,230.54 and 7,966.98 is: 10,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.15 : 19,230.54 = 7,966.98 : x
  2. Step 2: Convert to fraction form
    13,935.15/19,230.54 = 7,966.98/x
  3. Step 3: Cross multiply
    13,935.15x = 19,230.54 × 7,966.98
  4. Step 4: Simplify right side
    13,935.15x = 153,209,327.57
  5. Step 5: Solve for x
    x = 153,209,327.57/13,935.15
  6. Step 6: Final answer
    x = 10,994.45

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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.