Home / 14,500.64-21,750.28-5,140.51

Finding the Fourth Proportional to 14,500.64, 21,750.28 and 5,140.51

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Solution

The fourth proportional to 14,500.64, 21,750.28 and 5,140.51 is: 7,710.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500.64 : 21,750.28 = 5,140.51 : x
  2. Step 2: Convert to fraction form
    14,500.64/21,750.28 = 5,140.51/x
  3. Step 3: Cross multiply
    14,500.64x = 21,750.28 × 5,140.51
  4. Step 4: Simplify right side
    14,500.64x = 111,807,531.84
  5. Step 5: Solve for x
    x = 111,807,531.84/14,500.64
  6. Step 6: Final answer
    x = 7,710.52

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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.