Home / 10,389.60-15,567.30-5,999.40

Finding the Fourth Proportional to 10,389.60, 15,567.30 and 5,999.40

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Solution

The fourth proportional to 10,389.60, 15,567.30 and 5,999.40 is: 8,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.60 : 15,567.30 = 5,999.40 : x
  2. Step 2: Convert to fraction form
    10,389.60/15,567.30 = 5,999.40/x
  3. Step 3: Cross multiply
    10,389.60x = 15,567.30 × 5,999.40
  4. Step 4: Simplify right side
    10,389.60x = 93,394,459.62
  5. Step 5: Solve for x
    x = 93,394,459.62/10,389.60
  6. Step 6: Final answer
    x = 8,989.23

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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.