Home / 14,193.04-19,587-7,905.40

Finding the Fourth Proportional to 14,193.04, 19,587 and 7,905.40

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Solution

The fourth proportional to 14,193.04, 19,587 and 7,905.40 is: 10,909.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,193.04 : 19,587 = 7,905.40 : x
  2. Step 2: Convert to fraction form
    14,193.04/19,587 = 7,905.40/x
  3. Step 3: Cross multiply
    14,193.04x = 19,587 × 7,905.40
  4. Step 4: Simplify right side
    14,193.04x = 154,843,069.80
  5. Step 5: Solve for x
    x = 154,843,069.80/14,193.04
  6. Step 6: Final answer
    x = 10,909.79

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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.