Home / 15,810.74-21,806.52-11,209.40

Finding the Fourth Proportional to 15,810.74, 21,806.52 and 11,209.40

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Solution

The fourth proportional to 15,810.74, 21,806.52 and 11,209.40 is: 15,460.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.74 : 21,806.52 = 11,209.40 : x
  2. Step 2: Convert to fraction form
    15,810.74/21,806.52 = 11,209.40/x
  3. Step 3: Cross multiply
    15,810.74x = 21,806.52 × 11,209.40
  4. Step 4: Simplify right side
    15,810.74x = 244,438,005.29
  5. Step 5: Solve for x
    x = 244,438,005.29/15,810.74
  6. Step 6: Final answer
    x = 15,460.25

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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.