Home / 12,071.64-16,657.20-7,291.80

Finding the Fourth Proportional to 12,071.64, 16,657.20 and 7,291.80

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Solution

The fourth proportional to 12,071.64, 16,657.20 and 7,291.80 is: 10,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.64 : 16,657.20 = 7,291.80 : x
  2. Step 2: Convert to fraction form
    12,071.64/16,657.20 = 7,291.80/x
  3. Step 3: Cross multiply
    12,071.64x = 16,657.20 × 7,291.80
  4. Step 4: Simplify right side
    12,071.64x = 121,460,970.96
  5. Step 5: Solve for x
    x = 121,460,970.96/12,071.64
  6. Step 6: Final answer
    x = 10,061.68

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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.