Home / 15,356.40-21,192.06-9,068.76

Finding the Fourth Proportional to 15,356.40, 21,192.06 and 9,068.76

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Solution

The fourth proportional to 15,356.40, 21,192.06 and 9,068.76 is: 12,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.40 : 21,192.06 = 9,068.76 : x
  2. Step 2: Convert to fraction form
    15,356.40/21,192.06 = 9,068.76/x
  3. Step 3: Cross multiply
    15,356.40x = 21,192.06 × 9,068.76
  4. Step 4: Simplify right side
    15,356.40x = 192,185,706.05
  5. Step 5: Solve for x
    x = 192,185,706.05/15,356.40
  6. Step 6: Final answer
    x = 12,515.02

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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.