Home / 14,681.40-22,005.90-8,112.30

Finding the Fourth Proportional to 14,681.40, 22,005.90 and 8,112.30

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Solution

The fourth proportional to 14,681.40, 22,005.90 and 8,112.30 is: 12,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,681.40 : 22,005.90 = 8,112.30 : x
  2. Step 2: Convert to fraction form
    14,681.40/22,005.90 = 8,112.30/x
  3. Step 3: Cross multiply
    14,681.40x = 22,005.90 × 8,112.30
  4. Step 4: Simplify right side
    14,681.40x = 178,518,462.57
  5. Step 5: Solve for x
    x = 178,518,462.57/14,681.40
  6. Step 6: Final answer
    x = 12,159.50

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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.