Home / 9,630.40-13,248.30-7,858.12

Finding the Fourth Proportional to 9,630.40, 13,248.30 and 7,858.12

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Solution

The fourth proportional to 9,630.40, 13,248.30 and 7,858.12 is: 10,810.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,630.40 : 13,248.30 = 7,858.12 : x
  2. Step 2: Convert to fraction form
    9,630.40/13,248.30 = 7,858.12/x
  3. Step 3: Cross multiply
    9,630.40x = 13,248.30 × 7,858.12
  4. Step 4: Simplify right side
    9,630.40x = 104,106,731.20
  5. Step 5: Solve for x
    x = 104,106,731.20/9,630.40
  6. Step 6: Final answer
    x = 10,810.22

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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.