Home / 10,557.95-15,845.09-5,298.21

Finding the Fourth Proportional to 10,557.95, 15,845.09 and 5,298.21

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Solution

The fourth proportional to 10,557.95, 15,845.09 and 5,298.21 is: 7,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557.95 : 15,845.09 = 5,298.21 : x
  2. Step 2: Convert to fraction form
    10,557.95/15,845.09 = 5,298.21/x
  3. Step 3: Cross multiply
    10,557.95x = 15,845.09 × 5,298.21
  4. Step 4: Simplify right side
    10,557.95x = 83,950,587.80
  5. Step 5: Solve for x
    x = 83,950,587.80/10,557.95
  6. Step 6: Final answer
    x = 7,951.41

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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.