Home / 10,555.78-14,567.25-6,364.30

Finding the Fourth Proportional to 10,555.78, 14,567.25 and 6,364.30

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Solution

The fourth proportional to 10,555.78, 14,567.25 and 6,364.30 is: 8,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.78 : 14,567.25 = 6,364.30 : x
  2. Step 2: Convert to fraction form
    10,555.78/14,567.25 = 6,364.30/x
  3. Step 3: Cross multiply
    10,555.78x = 14,567.25 × 6,364.30
  4. Step 4: Simplify right side
    10,555.78x = 92,710,385.59
  5. Step 5: Solve for x
    x = 92,710,385.59/10,555.78
  6. Step 6: Final answer
    x = 8,782.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.