Home / 9,829.40-13,541.50-6,840.10

Finding the Fourth Proportional to 9,829.40, 13,541.50 and 6,840.10

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Solution

The fourth proportional to 9,829.40, 13,541.50 and 6,840.10 is: 9,423.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,829.40 : 13,541.50 = 6,840.10 : x
  2. Step 2: Convert to fraction form
    9,829.40/13,541.50 = 6,840.10/x
  3. Step 3: Cross multiply
    9,829.40x = 13,541.50 × 6,840.10
  4. Step 4: Simplify right side
    9,829.40x = 92,625,214.15
  5. Step 5: Solve for x
    x = 92,625,214.15/9,829.40
  6. Step 6: Final answer
    x = 9,423.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.