Home / 19,515.66-26,931.61-11,132.16

Finding the Fourth Proportional to 19,515.66, 26,931.61 and 11,132.16

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Solution

The fourth proportional to 19,515.66, 26,931.61 and 11,132.16 is: 15,362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.66 : 26,931.61 = 11,132.16 : x
  2. Step 2: Convert to fraction form
    19,515.66/26,931.61 = 11,132.16/x
  3. Step 3: Cross multiply
    19,515.66x = 26,931.61 × 11,132.16
  4. Step 4: Simplify right side
    19,515.66x = 299,806,904.50
  5. Step 5: Solve for x
    x = 299,806,904.50/19,515.66
  6. Step 6: Final answer
    x = 15,362.38

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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.