Home / 14,312.81-19,728.85-11,282.99

Finding the Fourth Proportional to 14,312.81, 19,728.85 and 11,282.99

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Solution

The fourth proportional to 14,312.81, 19,728.85 and 11,282.99 is: 15,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.81 : 19,728.85 = 11,282.99 : x
  2. Step 2: Convert to fraction form
    14,312.81/19,728.85 = 11,282.99/x
  3. Step 3: Cross multiply
    14,312.81x = 19,728.85 × 11,282.99
  4. Step 4: Simplify right side
    14,312.81x = 222,600,417.26
  5. Step 5: Solve for x
    x = 222,600,417.26/14,312.81
  6. Step 6: Final answer
    x = 15,552.53

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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.