Home / 12,870.14-19,267.65-7,924.94

Finding the Fourth Proportional to 12,870.14, 19,267.65 and 7,924.94

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Solution

The fourth proportional to 12,870.14, 19,267.65 and 7,924.94 is: 11,864.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,870.14 : 19,267.65 = 7,924.94 : x
  2. Step 2: Convert to fraction form
    12,870.14/19,267.65 = 7,924.94/x
  3. Step 3: Cross multiply
    12,870.14x = 19,267.65 × 7,924.94
  4. Step 4: Simplify right side
    12,870.14x = 152,694,970.19
  5. Step 5: Solve for x
    x = 152,694,970.19/12,870.14
  6. Step 6: Final answer
    x = 11,864.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.