Home / 15,478.98-23,222.38-4,385.77

Finding the Fourth Proportional to 15,478.98, 23,222.38 and 4,385.77

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Solution

The fourth proportional to 15,478.98, 23,222.38 and 4,385.77 is: 6,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.98 : 23,222.38 = 4,385.77 : x
  2. Step 2: Convert to fraction form
    15,478.98/23,222.38 = 4,385.77/x
  3. Step 3: Cross multiply
    15,478.98x = 23,222.38 × 4,385.77
  4. Step 4: Simplify right side
    15,478.98x = 101,847,948.51
  5. Step 5: Solve for x
    x = 101,847,948.51/15,478.98
  6. Step 6: Final answer
    x = 6,579.76

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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.