Home / 13,013.02-19,520.40-4,578.52

Finding the Fourth Proportional to 13,013.02, 19,520.40 and 4,578.52

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Solution

The fourth proportional to 13,013.02, 19,520.40 and 4,578.52 is: 6,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.02 : 19,520.40 = 4,578.52 : x
  2. Step 2: Convert to fraction form
    13,013.02/19,520.40 = 4,578.52/x
  3. Step 3: Cross multiply
    13,013.02x = 19,520.40 × 4,578.52
  4. Step 4: Simplify right side
    13,013.02x = 89,374,541.81
  5. Step 5: Solve for x
    x = 89,374,541.81/13,013.02
  6. Step 6: Final answer
    x = 6,868.09

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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.