Home / 13,225.05-18,250.02-7,916.76

Finding the Fourth Proportional to 13,225.05, 18,250.02 and 7,916.76

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Solution

The fourth proportional to 13,225.05, 18,250.02 and 7,916.76 is: 10,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.05 : 18,250.02 = 7,916.76 : x
  2. Step 2: Convert to fraction form
    13,225.05/18,250.02 = 7,916.76/x
  3. Step 3: Cross multiply
    13,225.05x = 18,250.02 × 7,916.76
  4. Step 4: Simplify right side
    13,225.05x = 144,481,028.34
  5. Step 5: Solve for x
    x = 144,481,028.34/13,225.05
  6. Step 6: Final answer
    x = 10,924.80

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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.