Home / 18,890.33-26,069.54-10,931.02

Finding the Fourth Proportional to 18,890.33, 26,069.54 and 10,931.02

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Solution

The fourth proportional to 18,890.33, 26,069.54 and 10,931.02 is: 15,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.33 : 26,069.54 = 10,931.02 : x
  2. Step 2: Convert to fraction form
    18,890.33/26,069.54 = 10,931.02/x
  3. Step 3: Cross multiply
    18,890.33x = 26,069.54 × 10,931.02
  4. Step 4: Simplify right side
    18,890.33x = 284,966,543.30
  5. Step 5: Solve for x
    x = 284,966,543.30/18,890.33
  6. Step 6: Final answer
    x = 15,085.31

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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.