Home / 10,307.09-15,461.40-2,912.15

Finding the Fourth Proportional to 10,307.09, 15,461.40 and 2,912.15

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Solution

The fourth proportional to 10,307.09, 15,461.40 and 2,912.15 is: 4,368.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.09 : 15,461.40 = 2,912.15 : x
  2. Step 2: Convert to fraction form
    10,307.09/15,461.40 = 2,912.15/x
  3. Step 3: Cross multiply
    10,307.09x = 15,461.40 × 2,912.15
  4. Step 4: Simplify right side
    10,307.09x = 45,025,916.01
  5. Step 5: Solve for x
    x = 45,025,916.01/10,307.09
  6. Step 6: Final answer
    x = 4,368.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.