Home / 15,803.76-23,688.98-6,440.16

Finding the Fourth Proportional to 15,803.76, 23,688.98 and 6,440.16

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Solution

The fourth proportional to 15,803.76, 23,688.98 and 6,440.16 is: 9,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.76 : 23,688.98 = 6,440.16 : x
  2. Step 2: Convert to fraction form
    15,803.76/23,688.98 = 6,440.16/x
  3. Step 3: Cross multiply
    15,803.76x = 23,688.98 × 6,440.16
  4. Step 4: Simplify right side
    15,803.76x = 152,560,821.44
  5. Step 5: Solve for x
    x = 152,560,821.44/15,803.76
  6. Step 6: Final answer
    x = 9,653.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.