Home / 8,535.18-12,810.70-4,378.16

Finding the Fourth Proportional to 8,535.18, 12,810.70 and 4,378.16

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Solution

The fourth proportional to 8,535.18, 12,810.70 and 4,378.16 is: 6,571.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,535.18 : 12,810.70 = 4,378.16 : x
  2. Step 2: Convert to fraction form
    8,535.18/12,810.70 = 4,378.16/x
  3. Step 3: Cross multiply
    8,535.18x = 12,810.70 × 4,378.16
  4. Step 4: Simplify right side
    8,535.18x = 56,087,294.31
  5. Step 5: Solve for x
    x = 56,087,294.31/8,535.18
  6. Step 6: Final answer
    x = 6,571.31

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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.