Home / 19,328.32-26,672.64-11,368.80

Finding the Fourth Proportional to 19,328.32, 26,672.64 and 11,368.80

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Solution

The fourth proportional to 19,328.32, 26,672.64 and 11,368.80 is: 15,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328.32 : 26,672.64 = 11,368.80 : x
  2. Step 2: Convert to fraction form
    19,328.32/26,672.64 = 11,368.80/x
  3. Step 3: Cross multiply
    19,328.32x = 26,672.64 × 11,368.80
  4. Step 4: Simplify right side
    19,328.32x = 303,235,909.63
  5. Step 5: Solve for x
    x = 303,235,909.63/19,328.32
  6. Step 6: Final answer
    x = 15,688.68

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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.