Home / 12,889.77-19,332.21-4,569.45

Finding the Fourth Proportional to 12,889.77, 19,332.21 and 4,569.45

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Solution

The fourth proportional to 12,889.77, 19,332.21 and 4,569.45 is: 6,853.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.77 : 19,332.21 = 4,569.45 : x
  2. Step 2: Convert to fraction form
    12,889.77/19,332.21 = 4,569.45/x
  3. Step 3: Cross multiply
    12,889.77x = 19,332.21 × 4,569.45
  4. Step 4: Simplify right side
    12,889.77x = 88,337,566.98
  5. Step 5: Solve for x
    x = 88,337,566.98/12,889.77
  6. Step 6: Final answer
    x = 6,853.31

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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.