Home / 15,962.85-23,938.86-5,430.05

Finding the Fourth Proportional to 15,962.85, 23,938.86 and 5,430.05

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Solution

The fourth proportional to 15,962.85, 23,938.86 and 5,430.05 is: 8,143.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,962.85 : 23,938.86 = 5,430.05 : x
  2. Step 2: Convert to fraction form
    15,962.85/23,938.86 = 5,430.05/x
  3. Step 3: Cross multiply
    15,962.85x = 23,938.86 × 5,430.05
  4. Step 4: Simplify right side
    15,962.85x = 129,989,119.75
  5. Step 5: Solve for x
    x = 129,989,119.75/15,962.85
  6. Step 6: Final answer
    x = 8,143.23

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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.