Home / 15,352.07-21,178.87-9,382.50

Finding the Fourth Proportional to 15,352.07, 21,178.87 and 9,382.50

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Solution

The fourth proportional to 15,352.07, 21,178.87 and 9,382.50 is: 12,943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352.07 : 21,178.87 = 9,382.50 : x
  2. Step 2: Convert to fraction form
    15,352.07/21,178.87 = 9,382.50/x
  3. Step 3: Cross multiply
    15,352.07x = 21,178.87 × 9,382.50
  4. Step 4: Simplify right side
    15,352.07x = 198,710,724.32
  5. Step 5: Solve for x
    x = 198,710,724.32/15,352.07
  6. Step 6: Final answer
    x = 12,943.58

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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.