Home / 10,559.85-15,828.33-6,864.74

Finding the Fourth Proportional to 10,559.85, 15,828.33 and 6,864.74

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Solution

The fourth proportional to 10,559.85, 15,828.33 and 6,864.74 is: 10,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,559.85 : 15,828.33 = 6,864.74 : x
  2. Step 2: Convert to fraction form
    10,559.85/15,828.33 = 6,864.74/x
  3. Step 3: Cross multiply
    10,559.85x = 15,828.33 × 6,864.74
  4. Step 4: Simplify right side
    10,559.85x = 108,657,290.94
  5. Step 5: Solve for x
    x = 108,657,290.94/10,559.85
  6. Step 6: Final answer
    x = 10,289.66

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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.