Home / 10,513.02-15,775.74-4,272.56

Finding the Fourth Proportional to 10,513.02, 15,775.74 and 4,272.56

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Solution

The fourth proportional to 10,513.02, 15,775.74 and 4,272.56 is: 6,411.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.02 : 15,775.74 = 4,272.56 : x
  2. Step 2: Convert to fraction form
    10,513.02/15,775.74 = 4,272.56/x
  3. Step 3: Cross multiply
    10,513.02x = 15,775.74 × 4,272.56
  4. Step 4: Simplify right side
    10,513.02x = 67,402,716.82
  5. Step 5: Solve for x
    x = 67,402,716.82/10,513.02
  6. Step 6: Final answer
    x = 6,411.36

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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.