Home / 10,395.18-15,570.63-8,412.30

Finding the Fourth Proportional to 10,395.18, 15,570.63 and 8,412.30

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Solution

The fourth proportional to 10,395.18, 15,570.63 and 8,412.30 is: 12,600.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,395.18 : 15,570.63 = 8,412.30 : x
  2. Step 2: Convert to fraction form
    10,395.18/15,570.63 = 8,412.30/x
  3. Step 3: Cross multiply
    10,395.18x = 15,570.63 × 8,412.30
  4. Step 4: Simplify right side
    10,395.18x = 130,984,810.75
  5. Step 5: Solve for x
    x = 130,984,810.75/10,395.18
  6. Step 6: Final answer
    x = 12,600.53

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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.