Home / 15,555.89-21,466.40-9,588.12

Finding the Fourth Proportional to 15,555.89, 21,466.40 and 9,588.12

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Solution

The fourth proportional to 15,555.89, 21,466.40 and 9,588.12 is: 13,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.89 : 21,466.40 = 9,588.12 : x
  2. Step 2: Convert to fraction form
    15,555.89/21,466.40 = 9,588.12/x
  3. Step 3: Cross multiply
    15,555.89x = 21,466.40 × 9,588.12
  4. Step 4: Simplify right side
    15,555.89x = 205,822,371.23
  5. Step 5: Solve for x
    x = 205,822,371.23/15,555.89
  6. Step 6: Final answer
    x = 13,231.16

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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.