Home / 13,510.90-18,644.97-7,461.28

Finding the Fourth Proportional to 13,510.90, 18,644.97 and 7,461.28

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Solution

The fourth proportional to 13,510.90, 18,644.97 and 7,461.28 is: 10,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.90 : 18,644.97 = 7,461.28 : x
  2. Step 2: Convert to fraction form
    13,510.90/18,644.97 = 7,461.28/x
  3. Step 3: Cross multiply
    13,510.90x = 18,644.97 × 7,461.28
  4. Step 4: Simplify right side
    13,510.90x = 139,115,341.76
  5. Step 5: Solve for x
    x = 139,115,341.76/13,510.90
  6. Step 6: Final answer
    x = 10,296.53

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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.