Home / 12,019.60-16,598.40-11,365.12

Finding the Fourth Proportional to 12,019.60, 16,598.40 and 11,365.12

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Solution

The fourth proportional to 12,019.60, 16,598.40 and 11,365.12 is: 15,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.60 : 16,598.40 = 11,365.12 : x
  2. Step 2: Convert to fraction form
    12,019.60/16,598.40 = 11,365.12/x
  3. Step 3: Cross multiply
    12,019.60x = 16,598.40 × 11,365.12
  4. Step 4: Simplify right side
    12,019.60x = 188,642,807.81
  5. Step 5: Solve for x
    x = 188,642,807.81/12,019.60
  6. Step 6: Final answer
    x = 15,694.60

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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.