Home / 12,328.74-18,496.16-4,931.22

Finding the Fourth Proportional to 12,328.74, 18,496.16 and 4,931.22

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Solution

The fourth proportional to 12,328.74, 18,496.16 and 4,931.22 is: 7,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.74 : 18,496.16 = 4,931.22 : x
  2. Step 2: Convert to fraction form
    12,328.74/18,496.16 = 4,931.22/x
  3. Step 3: Cross multiply
    12,328.74x = 18,496.16 × 4,931.22
  4. Step 4: Simplify right side
    12,328.74x = 91,208,634.12
  5. Step 5: Solve for x
    x = 91,208,634.12/12,328.74
  6. Step 6: Final answer
    x = 7,398.05

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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.