Home / 15,495.06-21,386.57-10,190.37

Finding the Fourth Proportional to 15,495.06, 21,386.57 and 10,190.37

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Solution

The fourth proportional to 15,495.06, 21,386.57 and 10,190.37 is: 14,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,495.06 : 21,386.57 = 10,190.37 : x
  2. Step 2: Convert to fraction form
    15,495.06/21,386.57 = 10,190.37/x
  3. Step 3: Cross multiply
    15,495.06x = 21,386.57 × 10,190.37
  4. Step 4: Simplify right side
    15,495.06x = 217,937,010.38
  5. Step 5: Solve for x
    x = 217,937,010.38/15,495.06
  6. Step 6: Final answer
    x = 14,064.93

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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.