Home / 12,210.12-16,853.45-7,430.81

Finding the Fourth Proportional to 12,210.12, 16,853.45 and 7,430.81

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Solution

The fourth proportional to 12,210.12, 16,853.45 and 7,430.81 is: 10,256.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.12 : 16,853.45 = 7,430.81 : x
  2. Step 2: Convert to fraction form
    12,210.12/16,853.45 = 7,430.81/x
  3. Step 3: Cross multiply
    12,210.12x = 16,853.45 × 7,430.81
  4. Step 4: Simplify right side
    12,210.12x = 125,234,663.37
  5. Step 5: Solve for x
    x = 125,234,663.37/12,210.12
  6. Step 6: Final answer
    x = 10,256.63

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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.