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Finding the Fourth Proportional to 12,154.04, 18,238.74 and 6,970.04

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Solution

The fourth proportional to 12,154.04, 18,238.74 and 6,970.04 is: 10,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.04 : 18,238.74 = 6,970.04 : x
  2. Step 2: Convert to fraction form
    12,154.04/18,238.74 = 6,970.04/x
  3. Step 3: Cross multiply
    12,154.04x = 18,238.74 × 6,970.04
  4. Step 4: Simplify right side
    12,154.04x = 127,124,747.35
  5. Step 5: Solve for x
    x = 127,124,747.35/12,154.04
  6. Step 6: Final answer
    x = 10,459.46

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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.