Home / 9,362.18-12,915.80-5,382.45

Finding the Fourth Proportional to 9,362.18, 12,915.80 and 5,382.45

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Solution

The fourth proportional to 9,362.18, 12,915.80 and 5,382.45 is: 7,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.18 : 12,915.80 = 5,382.45 : x
  2. Step 2: Convert to fraction form
    9,362.18/12,915.80 = 5,382.45/x
  3. Step 3: Cross multiply
    9,362.18x = 12,915.80 × 5,382.45
  4. Step 4: Simplify right side
    9,362.18x = 69,518,588.51
  5. Step 5: Solve for x
    x = 69,518,588.51/9,362.18
  6. Step 6: Final answer
    x = 7,425.47

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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.